Fix typos

ba/tutorials/tour/_posts/2017-02-13-nested-functions.md

@@ -12,7 +12,7 @@ language: ba
 ---
 
 U Scali je moguće ugnježdavati definicije funkcija.
-Sljedeći objekt sadrži funkciju `filter` za dobijanje vrijednosti iz liste cijelih brojeva koji su manji od vrijednosti praga (treshold):
+Sljedeći objekt sadrži funkciju `filter` za dobijanje vrijednosti iz liste cijelih brojeva koji su manji od vrijednosti praga (threshold):
 
     object FilterTest extends App {
       def filter(xs: List[Int], threshold: Int) = {

overviews/collections/trait-iterable.md

@@ -9,7 +9,7 @@ num: 4
 languages: [ja, zh-cn]
 ---
 
-The next trait from the top in the collections hierarchy is `Iterable`. All methods in this trait are defined in terms of an an abstract method, `iterator`, which yields the collection's elements one by one. The `foreach` method from trait `Traversable` is implemented in `Iterable` in terms of `iterator`. Here is the actual implementation:
+The next trait from the top in the collections hierarchy is `Iterable`. All methods in this trait are defined in terms of an abstract method, `iterator`, which yields the collection's elements one by one. The `foreach` method from trait `Traversable` is implemented in `Iterable` in terms of `iterator`. Here is the actual implementation:
 
     def foreach[U](f: Elem => U): Unit = {
       val it = iterator

sips/completed/_posts/2016-06-25-trailing-commas.md

@@ -199,7 +199,7 @@ class Bippy(
 
 ## Implementation
 
-The implementation of trailing commas is is limited to changing Parsers.scala in the Scala compiler. An implementation of this proposal can be found at [scala/scala#5245][].
+The implementation of trailing commas is limited to changing Parsers.scala in the Scala compiler. An implementation of this proposal can be found at [scala/scala#5245][].
 
 ## Drawbacks/Trade-offs
 

sips/pending/_posts/2016-09-09-inline-meta.md

@@ -187,7 +187,7 @@ A typical first line of a macro impl is `import c.universe._` that makes the ent
 
 In addition to the compiler context, for every term parameter of a macro def, its macro impl
 takes a term parameter that carries a representation of the corresponding argument of the macro application.
-Macro impls can can also get ahold of representation of type arguments, but this functionality is unnecessary for this example.
+Macro impls can also get ahold of representation of type arguments, but this functionality is unnecessary for this example.
 
 A macro impl returns an abstract syntax tree, and this AST replaces the original macro application in the compilation pipeline.
 This is how we're going to perform the LINQ translation of calls to `Query.map`.