docs: gms fixes

Change-Id: I197678e85ea2d11f35ccecdd7abc9564035acad4

Author: Robert Ly

docs/html/google/play-services/index.jd

@@ -16,7 +16,7 @@ header.hide=1
 
   <p>Give your apps more features to attract users on a wider range of devices.
   With Google Play services, your app can take advantage
-  of the latest, Google-powered features such as Maps, Google+, and more.
+  of the latest, Google-powered features such as Maps, Google+, and more,
   with automatic platform updates distributed as an APK through
   the Google Play store. This makes it faster for your users to receive updates
   and easier for you to integrate the newest that Google has to offer.