Example goto-addr hook: MH-E already uses goto-address

* lisp/net/goto-addr.el, doc/emacs/misc.texi: Do not use MH-E as the
example of how to add a hook to goto-address, because MH-E calls
goto-address internally.

Author: Stephen Gildea

doc/emacs/misc.texi

@@ -2939,9 +2939,8 @@ done by calling @code{browse-url} as a subroutine
 
   It can be useful to add @code{goto-address-mode} to mode hooks and
 hooks for displaying an incoming message
-(e.g., @code{rmail-show-message-hook} for Rmail, and
-@code{mh-show-mode-hook} for MH-E).  This is not needed for Gnus,
-which has a similar feature of its own.
+(e.g., @code{rmail-show-message-hook} for Rmail).  This is not needed
+for Gnus or MH-E, which have similar features of their own.
 
 @node FFAP
 @subsection Finding Files and URLs at Point

lisp/net/goto-addr.el

@@ -5,7 +5,7 @@
 ;; Author: Eric Ding <[email protected]>
 ;; Maintainer: [email protected]
 ;; Created: 15 Aug 1995
-;; Keywords: mh-e, www, mouse, mail
+;; Keywords: www, mouse, mail
 
 ;; This file is part of GNU Emacs.
 
@@ -32,10 +32,10 @@
 
 ;; INSTALLATION
 ;;
-;; To use goto-address in a particular mode (for example, while
-;; reading mail in mh-e), add this to your init file:
+;; To use goto-address in a particular mode (this example uses
+;; the fictional rich-text-mode), add this to your init file:
 ;;
-;; (add-hook 'mh-show-mode-hook 'goto-address)
+;; (add-hook 'rich-text-mode-hook 'goto-address)
 ;;
 ;; The mouse click method is bound to [mouse-2] on highlighted URLs or
 ;; e-mail addresses only; it functions normally everywhere else.  To bind