Added comment

Signed-off-by: Lucas Haug <fuermhandy@gmail.com>

src/main/java/com/owncloud/android/ui/fragment/LocalFileListFragment.java

@@ -190,6 +190,9 @@ public class LocalFileListFragment extends ExtendedListFragment implements
         }
     }
 
+    /**
+     * Toggle selection of checked/unchecked file and notify adapter.
+     */
     @Override
     public void onItemCheckboxClicked(File file) {
         if (file != null) {