[gnome-mines] Fixed incorrect comment position in help doc

[Robert Roth <robertroth src gnome org>]

commit 69714de6d4a67f8b34c2aedd918b3644a4820e73
Author: Robert Roth <robert roth off gmail com>
Date:   Mon Dec 10 20:26:07 2018 +0200

    Fixed incorrect comment position in help doc

 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 f45423a..6118ce7 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -42,9 +42,10 @@ 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>
   </section>