Kathy's post-review edits

cc @kwalrath

Author: chalin

public/docs/ts/latest/guide/template-syntax.jade

@@ -581,7 +581,7 @@ a(id="one-time-initialization")
 
 
 :marked
-  #### Content Security
+  #### Content security
   Imagine the following *malicious content*.
 +makeExample('template-syntax/ts/app/app.component.ts', 'evil-title')(format=".")    
 :marked
@@ -599,10 +599,10 @@ figure.image-display
 .l-main-section
 :marked
   <a id="other-bindings"></a>
-  ## Attribute, Class, and Style Bindings
+  ## Attribute, class, and style bindings
   The template syntax provides specialized one-way bindings for scenarios less well suited to property binding.
 
-  ### Attribute Binding
+  ### Attribute binding
   We can set the value of an attribute directly with an **attribute binding**.
 .l-sub-section
   :marked
@@ -652,7 +652,7 @@ code-example(format="nocode").
   is to set ARIA attributes, as in this example:
 +makeExample('template-syntax/ts/app/app.component.html', 'attrib-binding-aria')(format=".")
 :marked
-  ### Class Binding
+  ### Class binding
 
   We can add and remove CSS class names from an element’s `class` attribute with
   a **class binding**.
@@ -680,7 +680,7 @@ code-example(format="nocode").
     we generally prefer the [NgClass directive](#ngClass) for managing multiple class names at the same time.
 
 :marked
-  ### Style Binding
+  ### Style binding
 
   We can set inline styles with a **style binding**.
 
@@ -744,7 +744,7 @@ block style-property-name-dart-diff
     on [aliasing input/output properties](#aliasing-io).
 
 :marked
-  If the name fails to match element event or output property of a known directive,
+  If the name fails to match an element event or an output property of a known directive,
   Angular reports an “unknown directive” error.
 
   ### *$event* and event handling statements
@@ -775,7 +775,7 @@ block style-property-name-dart-diff
 
   <a id="eventemitter"></a>
   <a id="custom-event"></a>
-  ### Custom Events with EventEmitter
+  ### Custom events with EventEmitter
 
   Directives typically raise custom events with an Angular [EventEmitter](../api/core/index/EventEmitter-class.html).
   The directive creates an `EventEmitter` and exposes it as a property.
@@ -850,7 +850,7 @@ block style-property-name-dart-diff
 
   Angular offers a special _two-way data binding_ syntax for this purpose, **`[(x)]`**.
   The `[(x)]` syntax combines the brackets 
-  of _Property Binding_, `[x]`, with the parentheses of _Event Binding_, `(x)`.
+  of _property binding_, `[x]`, with the parentheses of _event binding_, `(x)`.
 
 .callout.is-important
   header [( )] = banana in a box