[gnome-clocks] help: add a seealso title, used from gnome-help

[David King <davidk src gnome org>]

commit bedf96cb4ff0f2217f11b01d4bea6436011d0431
Author: David King <amigadave amigadave com>
Date:   Sat Jul 20 00:48:45 2019 +0100

    help: add a seealso title, used from gnome-help

 help/C/index.page | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/help/C/index.page b/help/C/index.page
index 86c6e43..93b0b1c 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -19,6 +19,8 @@
       <years>2013</years>
     </credit>
 
+    <title type="link" role="seealso">Clocks Help</title>
+
     <desc>Use <app>Clocks</app> as a stopwatch, a timer, to set alarms and to
     check the time in different cities around the world.</desc>
   </info>