Add an xref, cindex to the lispref

* customize.texi (Common Keywords): Add xref. 
* tips.texi (Library Headers): Add cindex.

Fixes: debbugs:13311

3 files changed, 7 insertions, 1 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index a52268fc7e7..1af60a68fd2 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-31  Glenn Morris  <rgm@gnu.org>
+
+        * customize.texi (Common Keywords): Add xref.  (Bug#13311)
+        * tips.texi (Library Headers): Add cindex.
+
 2012-12-29  Wolfgang Jenkner  <wjenkner@inode.at>
 
         * functions.texi (Declare Form):
diff --git a/doc/lispref/customize.texi b/doc/lispref/customize.texi
index cb48f6f284e..9819d8a8b3f 100644
--- a/doc/lispref/customize.texi
+++ b/doc/lispref/customize.texi
@@ -101,7 +101,7 @@ Link to a web page; @var{url} is a string which specifies the
 
 @item (emacs-commentary-link @var{library})
 Link to the commentary section of a library; @var{library} is a string
-which specifies the library name.
+which specifies the library name.  @xref{Library Headers}.
 
 @item (emacs-library-link @var{library})
 Link to an Emacs Lisp library file; @var{library} is a string which
diff --git a/doc/lispref/tips.texi b/doc/lispref/tips.texi
index d54d91b238a..eae50407c37 100644
--- a/doc/lispref/tips.texi
+++ b/doc/lispref/tips.texi
@@ -1063,6 +1063,7 @@ names---they have no standard meanings, so they can't do any harm.
 library file.  These should be separated from anything else by blank
 lines.  Here is a table of them:
 
+@cindex commentary, in a Lisp library
 @table @samp
 @item ;;; Commentary:
 This begins introductory comments that explain how the library works.