Doc: add docs for ISO Icon Browser

A commercial Qt Quick Designer plugin for
adding ISO 7000 icons to applications from
an icon library.

Change-Id: I96d740d63bc77da9817ce2d5ccdb1625dbc5caa6
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>

doc/src/qtcreator.qdoc

@@ -185,6 +185,7 @@
                 \li \l {Creating Buttons}
                 \li \l {Creating Scalable Buttons and Borders}
                 \li \l {Creating Screens}
+                \li \l {Browsing ISO 7000 Icons}
                 \li \l {Exporting Designs from Graphics Software}
                 \li \l {Using QML Modules with Plugins}
             \endlist