Fix typo in documents

googlemock/docs/for_dummies.md

@@ -213,7 +213,7 @@ specific domain much better than `Foo` does.
 Once you have a mock class, using it is easy. The typical work flow is:
 
 1.  Import the gMock names from the `testing` namespace such that you can use
-    them unqualified (You only have to do it once per file. Remember that
+    them unqualified (You only have to do it once per file). Remember that
     namespaces are a good idea.
 2.  Create some mock objects.
 3.  Specify your expectations on them (How many times will a method be called?