Licence grammar fix

vlc-android/assets/licence.htm

@@ -16,7 +16,7 @@
       <h2>Sources</h2>
         <p>The sources to this application can be retrieved at <a href="http://git.videolan.org/?p=vlc-ports/android.git;a=tree;h=!COMMITID!">http://git.videolan.org/?p=vlc-ports/android.git;a=tree;h=!COMMITID!</a>.</p>
       <h2>Libraries</h2>
-        <p>Some VLC plugins use external libraries and makes extensive use of the following persons' or companies' code:
+        <p>Some VLC plugins use external libraries that make extensive use of the following persons' or companies' code:
         <ul>
             <li>ActionBarSherlock - Copyright &copy; 2011-2012 Jake Wharton - <a href="http://www.apache.org/licenses/LICENSE-2.0.html">Apache 2.0</a></li>
             <li>FFmpeg/Libav - Copyright &copy; 2000-2010 the FFmpeg developers</li>