Merge pull request #413 from ameltonyan/fix/412

A new way of creating an already existing variable in the surrounding scope. #412

Author: basarat

Diff for: docs/let.md

@@ -57,7 +57,7 @@ if (true) {
     var foo = 123;
 }
 ```
-However if the variable name is already taken by the surrounding scope then a new variable name is generated as shown (notice `_foo`):
+However if the variable name is already taken by the surrounding scope then a new variable name is generated as shown (notice `foo_1`):
 
 ```ts
 var foo = '123';
@@ -69,12 +69,12 @@ if (true) {
 
 var foo = '123';
 if (true) {
-    var _foo = 123; // Renamed
+    var foo_1 = 123; // Renamed
 }
 ```
 
 #### Switch
-You can wrap your `case` bodies in `{}` to reuse variable names reliably in different `case` statement as shown below: 
+You can wrap your `case` bodies in `{}` to reuse variable names reliably in different `case` statement as shown below:
 
 ```ts
 switch (name) {