[gnome-mahjongg] help: Don't show Keyboard Shortcuts page

[Jeremy Bicha <jbicha src gnome org>]

commit bf7d56e080a9ee2d21223c4645d225c799f254a1
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sun Dec 9 15:50:18 2018 -0500

    help: Don't show Keyboard Shortcuts page
    
    but keep shipping it for now so that we don't lose translations
    until we make a stronger decision.
    
    https://mail.gnome.org/archives/desktop-devel-list/2018-December/msg00024.html

 help/C/index.page | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/help/C/index.page b/help/C/index.page
index 89f93cc..301a39a 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -33,9 +33,13 @@
   </section>
 
 
+<!--
+Let's not include Keyboard Shortcuts here for now.
+See https://mail.gnome.org/archives/desktop-devel-list/2018-December/msg00024.html
   <section id="advanced" style="2column">
     <title>Advanced</title>
   </section>
+-->
 
   <section id="get-involved" style="2column">
     <title>Get involved</title>