[retro-gtk] doc: Link to the online documentation

[Adrien Plazas <aplazas src gnome org>]

commit 36ec0f70066d7d319b163623acc856d6669a308f
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Nov 15 15:44:41 2020 +0100

    doc: Link to the online documentation

 doc/retro-gtk-doc.xml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/doc/retro-gtk-doc.xml b/doc/retro-gtk-doc.xml
index 1b59589f..41ee06e6 100644
--- a/doc/retro-gtk-doc.xml
+++ b/doc/retro-gtk-doc.xml
@@ -12,6 +12,8 @@
     <releaseinfo>
       <para>
         This document is the API reference for &package_name; &package_version;.
+        The latest version can be found online at
+        <ulink role="online-location" 
url="https://gnome.pages.gitlab.gnome.org/retro-gtk/";>https://gnome.pages.gitlab.gnome.org/retro-gtk/</ulink>.
       </para>
       <para>
         <ulink type="http" url="&package_url;">&package_name;</ulink> is a