[LyX/master] Adjust docs after cb899b3f.

[Enrico Forestieri]

commit f96e4f1bc54ead5b0f56637a4c26a79d3b2d02ff
Author: Enrico Forestieri <for...@lyx.org>
Date:   Sat Mar 28 23:39:30 2015 +0100

    Adjust docs after cb899b3f.

diff --git a/lib/doc/UserGuide.lyx b/lib/doc/UserGuide.lyx
index ffe4c16..8478acb 100644
--- a/lib/doc/UserGuide.lyx
+++ b/lib/doc/UserGuide.lyx
@@ -1872,13 +1872,13 @@ arg   "reload"
  The 
 \begin_inset Info
 type  "icon"
-arg   "down"
+arg   "outline-down"
 \end_inset
 
  and 
 \begin_inset Info
 type  "icon"
-arg   "up"
+arg   "outline-up"
 \end_inset
 
  buttons move sections up and down in the document.
@@ -1899,13 +1899,13 @@ arg   "up"
  With the buttons 
 \begin_inset Info
 type  "icon"
-arg   "promote"
+arg   "outline-out"
 \end_inset
 
  and 
 \begin_inset Info
 type  "icon"
-arg   "demote"
+arg   "outline-in"
 \end_inset
 
  (or the corresponding key bindings