Updated runtime files.
diff --git a/runtime/doc/develop.txt b/runtime/doc/develop.txt
index 0a4c03a..51d653b 100644
--- a/runtime/doc/develop.txt
+++ b/runtime/doc/develop.txt
@@ -1,4 +1,4 @@
-*develop.txt* For Vim version 7.3. Last change: 2012 Jan 10
+*develop.txt* For Vim version 7.3. Last change: 2013 Apr 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -20,6 +20,7 @@
Vim is open source software. Everybody is encouraged to contribute to help
improving Vim. For sending patches a context diff "diff -c" is preferred.
Also see http://www.vim.org/tips/tip.php?tip_id=618.
+Also see http://vim.wikia.com/wiki/How_to_make_and_submit_a_patch.
==============================================================================
1. Design goals *design-goals*