Document the bbdb links may use a regular expression.

Things like [[bbdb:R.*Stallman]] are allowed as bbdb links and will do
the right thing.

doc/ChangeLog

@@ -1,3 +1,8 @@
+2008-11-14  Carsten Dominik  <carsten.dominik@gmail.com>
+
+	* org.texi (External links): Document that bbdb links can use a
+	regular expression.
+
 2008-11-10  Carsten Dominik  <carsten.dominik@gmail.com>
 
 	* org.texi (Clocking work time): Document the :formula property of

doc/org.texi

@@ -2523,7 +2523,7 @@ rmail:folder                              @r{RMAIL folder link}
 rmail:folder#id                           @r{RMAIL message link}
 gnus:group                                @r{Gnus group link}
 gnus:group#id                             @r{Gnus article link}
-bbdb:Richard Stallman                     @r{BBDB link}
+bbdb:R.*Stallman                          @r{BBDB link (with regexp)}
 irc:/irc.com/#emacs/bob                   @r{IRC link}
 shell:ls *.org                            @r{A shell command}
 elisp:(find-file-other-frame "Elisp.org") @r{An elisp form to evaluate}