[gnome-boxes] help: capitalization fix

[Michael Hill <mdhill src gnome org>]

commit 073aed6d10a2511de5908a5a3f346b1ae2783fa2
Author: Michael Hill <mdhill gnome org>
Date:   Sun Sep 21 17:27:07 2014 -0400

    help: capitalization fix

 help/C/index.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/index.page b/help/C/index.page
index 013f4ae..90acb49 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -67,7 +67,7 @@
   </section>
 
   <section id="advanced" style="2column">
-    <title>Advanced Topics</title>
+    <title>Advanced topics</title>
   </section>
 
 </page>