[gtk-doc] Fix typo

[Stefan Sauer <stefkost src gnome org>]

commit 136b582a4c90a5c9480442ac957a26745452c777
Author: Anders Jonsson <anders jonsson norsjovallen se>
Date:   Wed Dec 27 18:16:48 2017 +0100

    Fix typo
    
    developemnt -> development
    
    https://bugzilla.gnome.org/show_bug.cgi?id=791987

 help/manual/C/index.docbook |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/manual/C/index.docbook b/help/manual/C/index.docbook
index d3ae4a8..c89d9f9 100644
--- a/help/manual/C/index.docbook
+++ b/help/manual/C/index.docbook
@@ -84,7 +84,7 @@
          <revnumber>1.27.1</revnumber>
          <date>07 Dec 2017</date>
          <authorinitials>ss</authorinitials>
-         <revremark>developemnt</revremark>
+         <revremark>development</revremark>
       </revision>
       <revision>
          <revnumber>1.27</revnumber>