Add Nicolas as the maintainer for a few ox-*.el files

* lisp/ox.el:
* lisp/ox-texinfo.el:
* lisp/ox-publish.el:
* lisp/ox-org.el:
* lisp/ox-md.el:
* lisp/ox-icalendar.el:
* lisp/ox-beamer.el:
* lisp/ox-ascii.el: Add Nicolas as the maintainer.

lisp/ox-ascii.el

@@ -3,6 +3,7 @@
 ;; Copyright (C) 2012-2021 Free Software Foundation, Inc.
 
 ;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: outlines, hypermedia, calendar, wp
 
 ;; This file is part of GNU Emacs.

lisp/ox-beamer.el

@@ -4,6 +4,7 @@
 
 ;; Author: Carsten Dominik <carsten.dominik AT gmail DOT com>
 ;;         Nicolas Goaziou <n.goaziou AT gmail DOT com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: org, wp, tex
 
 ;; This file is part of GNU Emacs.

lisp/ox-icalendar.el

@@ -4,6 +4,7 @@
 
 ;; Author: Carsten Dominik <carsten at orgmode dot org>
 ;;      Nicolas Goaziou <n dot goaziou at gmail dot com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: outlines, hypermedia, calendar, wp
 ;; Homepage: https://orgmode.org
 

lisp/ox-md.el

@@ -3,6 +3,7 @@
 ;; Copyright (C) 2012-2021 Free Software Foundation, Inc.
 
 ;; Author: Nicolas Goaziou <n.goaziou@gmail.com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: org, wp, markdown
 
 ;; This file is part of GNU Emacs.

lisp/ox-org.el

@@ -3,6 +3,7 @@
 ;; Copyright (C) 2013-2021 Free Software Foundation, Inc.
 
 ;; Author: Nicolas Goaziou <n.goaziou@gmail.com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: org, wp
 
 ;; This file is part of GNU Emacs.

lisp/ox-publish.el

@@ -2,7 +2,7 @@
 ;; Copyright (C) 2006-2021 Free Software Foundation, Inc.
 
 ;; Author: David O'Toole <dto@gnu.org>
-;; Maintainer: Carsten Dominik <carsten at orgmode dot org>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: hypermedia, outlines, wp
 
 ;; This file is part of GNU Emacs.

lisp/ox-texinfo.el

@@ -2,6 +2,7 @@
 
 ;; Copyright (C) 2012-2021 Free Software Foundation, Inc.
 ;; Author: Jonathan Leech-Pepin <jonathan.leechpepin at gmail dot com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: outlines, hypermedia, calendar, wp
 
 ;; This file is part of GNU Emacs.

lisp/ox.el

@@ -3,6 +3,7 @@
 ;; Copyright (C) 2012-2021 Free Software Foundation, Inc.
 
 ;; Author: Nicolas Goaziou <n.goaziou at gmail dot com>
+;; Maintainer: Nicolas Goaziou <n.goaziou at gmail dot com>
 ;; Keywords: outlines, hypermedia, calendar, wp
 
 ;; This file is part of GNU Emacs.