Sarah final review

Author: sarahhaggarty

docs/kr.tree

@@ -13,7 +13,7 @@
 		<toc-element hidden="true" topic="kotlin-tour-null-safety.md"/>
         <toc-element hidden="true" topic="kotlin-tour-intermediate-extension-functions.md"/>
 		<toc-element hidden="true" topic="kotlin-tour-intermediate-scope-functions.md"/>
-		<toc-element hidden="true" topic="kotlin-tour-intermediate-functions-lambdas-receiver.md"/>
+		<toc-element hidden="true" topic="kotlin-tour-intermediate-lambdas-receiver.md"/>
         <toc-element hidden="true" topic="kotlin-tour-intermediate-classes-interfaces.md"/>
 		<toc-element hidden="true" topic="kotlin-tour-intermediate-classes-objects.md"/>
 		<toc-element hidden="true" topic="kotlin-tour-intermediate-classes-open-special-classes.md"/>

docs/topics/tour/kotlin-tour-intermediate-classes-interfaces.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br /> 
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br /> 
         <img src="icon-4.svg" width="20" alt="Fourth step" /> <strong>Classes and interfaces</strong><br />
         <img src="icon-5-todo.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-todo.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />
@@ -14,15 +14,15 @@
 
 In the beginner tour, you learned how to use classes and data classes to store data and maintain a collection of characteristics
 that can be shared in your code. Eventually, you will want to create a hierarchy to efficiently share code within your 
-projects. This chapter explains the options Kotlin provides for this and how they can make your code safer and easier to maintain.
+projects. This chapter explains the options Kotlin provides for sharing code and how they can make your code safer and easier to maintain.
 
 ## Class inheritance
 
-In the previous chapter, we covered how you can use extension functions to extend classes without modifying the original source code.
+In a previous chapter, we covered how you can use extension functions to extend classes without modifying the original source code.
 But what if you are working on something complex where sharing code **between** classes would be useful? In such cases, 
 you can use class inheritance.
 
-By default, classes in Kotlin can't be inherited. This is designed to prevent unintended inheritance and make
+By default, classes in Kotlin can't be inherited. Kotlin is designed this way to prevent unintended inheritance and make
 your classes easier to maintain.
 
 Kotlin classes only support **single inheritance**, meaning it is only possible to inherit from **one class at a time**.
@@ -33,7 +33,7 @@ hierarchy is the common parent class: `Any`. All classes ultimately inherit from
 
 ![An example of the class hierarchy with Any type](any-type-class.png){width="200"}
 
-The `Any` class provides the `.toString()` function as a member function automatically. Therefore, you can
+The `Any` class provides the `toString()` function as a member function automatically. Therefore, you can
 use this inherited function in any of your classes. For example:
 
 ```kotlin
@@ -148,8 +148,6 @@ fun main() {
 Although abstract classes are great for sharing code in this way, they are restricted because classes in Kotlin
 only support single inheritance. If you need to inherit from multiple sources, consider using interfaces.
 
-For more information, see [Abstract classes](classes.md#abstract-classes).
-
 ## Interfaces
 
 Interfaces are similar to classes, but they have some differences:

docs/topics/tour/kotlin-tour-intermediate-classes-objects.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br /> 
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br /> 
         <img src="icon-4-done.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br /> 
         <img src="icon-5.svg" width="20" alt="Fourth step" /> <strong>Objects</strong><br />
         <img src="icon-6-todo.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />

docs/topics/tour/kotlin-tour-intermediate-classes-open-special-classes.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-done.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-done.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6.svg" width="20" alt="Fourth step" /> <strong>Open and special classes</strong><br />
@@ -12,7 +12,7 @@
         <img src="icon-9-todo.svg" width="20" alt="Ninth step" /> <a href="kotlin-tour-intermediate-libraries-and-apis.md">Libraries and APIs</a></p>
 </tldr>
 
-In this chapter, you'll learn about open classes, how they work with interfaces, and the special
+In this chapter, you'll learn about open classes, how they work with interfaces, and other special
 types of classes available in Kotlin.
 
 ## Open classes
@@ -366,12 +366,12 @@ An inline value class **must** have a single property initialized in the class h
 Let's say that you want to create a class that collects an email address:
 
 ```kotlin
-// The value property is initialized in the class header.
+// The address property is initialized in the class header.
 @JvmInline
-value class Email(val value: String)
+value class Email(val address: String)
 
 fun sendEmail(email: Email) {
-    println("Sending email to ${email.value}")
+    println("Sending email to ${email.address}")
 }
 
 fun main() {
@@ -384,7 +384,7 @@ fun main() {
 
 In the example:
 
-* `Email` is an inline value class that has one property in the class header: `value`.
+* `Email` is an inline value class that has one property in the class header: `address`.
 * The `sendEmail()` function accepts objects with type `Email` and prints a string to the standard output.
 * The `main()` function:
     * Creates an instance of the `Email` class called `email`.

docs/topics/tour/kotlin-tour-intermediate-extension-functions.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1.svg" width="20" alt="First step" /> <strong>Extension functions</strong><br />
         <img src="icon-2-todo.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-todo.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-todo.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-todo.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-todo.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-todo.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />
@@ -12,8 +12,8 @@
         <img src="icon-9-todo.svg" width="20" alt="Ninth step" /> <a href="kotlin-tour-intermediate-libraries-and-apis.md">Libraries and APIs</a></p>
 </tldr>
 
-In this chapter, you'll explore special Kotlin functions that make your code more concise and readable, 
-and learn how they can help you use efficient design patterns to take your projects to the next level.
+In this chapter, you'll explore special Kotlin functions that make your code more concise and readable. Learn how they
+can help you use efficient design patterns to take your projects to the next level.
 
 ## Extension functions
 

docs/topics/tour/kotlin-tour-intermediate-functions-lambdas-receiver.md renamed to docs/topics/tour/kotlin-tour-intermediate-lambdas-receiver.md

@@ -13,7 +13,7 @@
 </tldr>
 
 In this chapter, you'll learn how to use receiver objects with another type of function, lambda expressions, and how they
-can make your code more concise and readable.
+can help you create a domain-specific language.
 
 ## Lambda expressions with receiver
 
@@ -154,7 +154,7 @@ standard library.
 > Lambda expressions with receivers can be combined with **type-safe builders** in Kotlin to make DSLs that detect any problems
 > with types at compile time rather than at runtime. To learn more, see [Type-safe builders](type-safe-builders.md).
 >
-{style="note"}
+{style="tip"}
 
 ## Practice
 

docs/topics/tour/kotlin-tour-intermediate-libraries-and-apis.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-done.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-done.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-done.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />
@@ -298,7 +298,7 @@ What should the opt-in look like in your code?
 
 ## What's next?
 
-Congratulations! Now that you have completed the intermediate tour, check out our tutorials for popular Kotlin applications:
+Congratulations! You've completed the intermediate tour! As a next step, check out our tutorials for popular Kotlin applications:
 
 * [Create a backend application with Spring Boot and Kotlin](jvm-create-project-with-spring-boot.md)
 * Create a cross-platform application for Android and iOS from scratch and:

docs/topics/tour/kotlin-tour-intermediate-null-safety.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-done.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-done.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-done.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />

docs/topics/tour/kotlin-tour-intermediate-properties.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2-done.svg" width="20" alt="Second step" /> <a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a><br />
-        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-done.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-done.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-done.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-done.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />

docs/topics/tour/kotlin-tour-intermediate-scope-functions.md

@@ -3,7 +3,7 @@
 <tldr>
     <p><img src="icon-1-done.svg" width="20" alt="First step" /> <a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a><br />
         <img src="icon-2.svg" width="20" alt="Second step" /> <strong>Scope functions</strong><br />
-        <img src="icon-3-todo.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a><br />
+        <img src="icon-3-todo.svg" width="20" alt="Third step" /> <a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a><br />
         <img src="icon-4-todo.svg" width="20" alt="Fourth step" /> <a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a><br />
         <img src="icon-5-todo.svg" width="20" alt="Fifth step" /> <a href="kotlin-tour-intermediate-classes-objects.md">Objects</a><br />
         <img src="icon-6-todo.svg" width="20" alt="Sixth step" /> <a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a><br />
@@ -535,4 +535,4 @@ fun main() {
 
 ## Next step
 
-[Intermediate: Lambda expressions with receiver](kotlin-tour-intermediate-functions-lambdas-receiver.md)
+[Intermediate: Lambda expressions with receiver](kotlin-tour-intermediate-lambdas-receiver.md)

docs/topics/tour/kotlin-tour-welcome.md

@@ -38,7 +38,7 @@ If you're ready to take your understanding of Kotlin to the next level, take our
         <ul>
             <li><a href="kotlin-tour-intermediate-extension-functions.md">Extension functions</a></li>
             <li><a href="kotlin-tour-intermediate-scope-functions.md">Scope functions</a></li>
-            <li><a href="kotlin-tour-intermediate-functions-lambdas-receiver.md">Lambda expressions with receiver</a></li>
+            <li><a href="kotlin-tour-intermediate-lambdas-receiver.md">Lambda expressions with receiver</a></li>
             <li><a href="kotlin-tour-intermediate-classes-interfaces.md">Classes and interfaces</a></li>
             <li><a href="kotlin-tour-intermediate-classes-objects.md">Objects</a></li>
             <li><a href="kotlin-tour-intermediate-classes-open-special-classes.md">Open and special classes</a></li>