Add myself as code owner and maintainer

Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com>
Change-Id: Ib9ad9321cd43a02f7160a7d7caad41bae4b039a4
diff --git a/doc/maintainers.rst b/doc/maintainers.rst
index b87f4a0..276b004 100644
--- a/doc/maintainers.rst
+++ b/doc/maintainers.rst
@@ -3,10 +3,12 @@
 
 |TFACMF| is an Arm maintained project. All contributions are ultimately merged
 by the maintainers listed below. Technical ownership of some parts of the
-codebase is delegated to the sub-maintainers listed below. An acknowledgement
-from these sub-maintainers may be required before the maintainers merge
+codebase is delegated to the code owners listed below. An acknowledgement
+from these code owners may be required before the maintainers merge
 a contribution.
 
+More details may be found in the `Project Maintenance Process`_ document.
+
 This file follows the format of the Linux Maintainers file. For details on the
 meaning of tags below please refer to the `Linux Maintainers file`_.
 
@@ -18,20 +20,25 @@
 :G: `balintdobszay`_
 :M: György Szing <gyorgy.szing@arm.com>
 :G: `gyuri-szing`_
+:M: Javier Almansa Sobrino <Javier.AlmansaSobrino@arm.com>
+:G: `javieralso-arm`_
 :L: |TFACMF-MAIL-LIST|
 
-Sub-maintainers
+Code owners
 --------------------
 
-Currently none.
+:M: Javier Almansa Sobrino <Javier.AlmansaSobrino@arm.com>
+:G: `javieralso-arm`_
 
 --------------
 
 .. _danh-arm: https://github.com/danh-arm
 .. _gyuri-szing: https://github.com/gyuri-szing
 .. _balintdobszay: https://github.com/balintdobszay
+.. _javieralso-arm: https://github.com/javieralso-arm
 
 .. _`Linux Maintainers file`: https://github.com/torvalds/linux/blob/master/MAINTAINERS#L80
+.. _Project Maintenance Process: https://developer.trustedfirmware.org/w/collaboration/project-maintenance-process/
 
 *Copyright (c) 2020, Arm Limited and Contributors. All rights reserved.*