fixed typos

Author: Daniel Tschinder

cookbook/security/firewall_restriction.rst

@@ -10,7 +10,7 @@ restrict the initialization of a firewall against other options of the request.
 
 .. note::
 
-    You can use any of this restrictions individually or mix them together to get 
+    You can use any of these restrictions individually or mix them together to get 
     your desired firewall configuration. 
 
 Restricting by Pattern
@@ -132,15 +132,15 @@ If the hostname does not match this pattern, the firewall will not be activated
 and subsequent firewalls will have the opportunity to be matched for this
 request.
 
-Restricting by Http Methods
+Restricting by HTTP Methods
 ---------------------------
 
 .. versionadded:: 2.5
-    Support for restricting security firewalls to specific http methods was introduced in
+    Support for restricting security firewalls to specific HTTP methods was introduced in
     Symfony 2.5.
 
 The configuration option ``methods`` restricts the initialization of the firewall to
-the provided http methods.
+the provided HTTP methods.
 
 .. configuration-block::
 
@@ -187,7 +187,7 @@ the provided http methods.
             ),
         ));
 
-In this example, the firewall will only be activated if the http method of the
+In this example, the firewall will only be activated if the HTTP method of the
 request is either ``GET`` or ``POST``. If the method is not in the array of the
 allowed methods, the firewall will not be activated and subsequent firewalls will again
 have the opportunity to be matched for this request.