[gnome-mines] help: Hide empty 'Advanced' section on index page

[Andre Klapper <aklapper src gnome org>]

commit 5001e0123ea23ef396866bdf4d52ed1f396d8401
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Jan 3 14:54:28 2020 +0100

    help: Hide empty 'Advanced' section on index page

 help/C/index.page | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/help/C/index.page b/help/C/index.page
index fd38f8b..3be0a42 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -37,10 +37,11 @@
     <title>Useful tips</title>
   </section>
 
+<!--
   <section id="advanced" style="2column">
     <title>Advanced</title>
   </section>
-
+-->
   <section id="get-involved" style="2column">
     <title>Get Involved</title>
   </section>