[#1564] Pulling in a few more typo fixes from @pborreli

Author: weaverryan

book/templating.rst

@@ -645,7 +645,7 @@ Asynchronous Content with hinclude.js
 .. versionadded:: 2.1
     hinclude.js support was added in Symfony 2.1
 
-Controllers can be embedded asyncronously using the hinclude.js_ javascript library.
+Controllers can be embedded asynchronously using the hinclude.js_ javascript library.
 As the embedded content comes from another page (or controller for that matter),
 Symfony2 uses the standard ``render`` helper to configure ``hinclude`` tags:
 

book/translation.rst

@@ -292,7 +292,7 @@ Symfony2 looks for message files (i.e. translations) in the following locations:
 The locations are listed with the highest priority first. That is you can
 override the translation messages of a bundle in any of the top 2 directories.
 
-The override mechanism works at a key level: only the overriden keys need
+The override mechanism works at a key level: only the overridden keys need
 to be listed in a higher priority message file. When a key is not found
 in a message file, the translator will automatically fallback to the lower
 priority message files.
@@ -499,7 +499,7 @@ via the ``request`` object:
 
 .. code-block:: php
 
-    // access the reqest object in a standard controller
+    // access the request object in a standard controller
     $request = $this->getRequest();
 
     $locale = $request->getLocale();