Update runtime files.
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index c2b1ca1..43196e9 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -1,4 +1,4 @@
-*index.txt* For Vim version 7.3. Last change: 2013 Jun 06
+*index.txt* For Vim version 7.3. Last change: 2013 Jun 21
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -801,6 +801,10 @@
|zE| zE eliminate all folds
|zF| zF create a fold for N lines
|zG| zG mark word as good spelled word
+|zH| zH when 'wrap' off scroll half a screenwidth
+ to the right
+|zL| zL when 'wrap' off scroll half a screenwidth
+ to the left
|zM| zM set 'foldlevel' to zero
|zN| zN set 'foldenable'
|zO| zO open folds recursively