Doc: Adding link to QML application page from the main page.

-The page contents need to be edited still, but we should expose it to
the readers.

Change-Id: Ica699efdbaa6ab5223099daf8872d1e1fe101e3e
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>

doc/src/index.qdoc

@@ -88,6 +88,7 @@
                 \li \l{Qt Multimedia Overview}{Multimedia}
                 \li \l{Networking and Connectivity}
                 \li \l{Graphics}
+                \li \l{QML Application Developer Resources}{QML Applications}
                 \endlist
                 \list
                 \li \l{Qt Overviews}{All Qt Overviews}

doc/src/topics.qdoc

@@ -41,6 +41,7 @@ functionality and can be used as a starting point for learning how to to get the
 \li \l{Qt Multimedia Overview}{Multimedia}
 \li \l{Networking and Connectivity}
 \li \l{Graphics}
+\li \l{QML Application Developer Resources}{QML Applications}
 \endlist
 
 \list