Fixed a minor grammar issue

javiereguiluz · javiereguiluz · commit 9dc8b8f9b839 · 2015-06-10T09:40:35.000+02:00
diff --git a/book/security.rst b/book/security.rst
@@ -277,7 +277,7 @@ But who can you login as? Where do users come from?
 
 .. tip::
 
-    If your application logs in users via a third-party service such as Google,
+    If your application logs users in via a third-party service such as Google,
     Facebook or Twitter, check out the `HWIOAuthBundle`_ community bundle.
 
 .. _security-user-providers:
