Bump version number and update changelog

Update the release notes & changelog page, and bump version numbers.

Change-Id: Ie90f46a8dbd9742fe34fe4bda7180b03731c3e8a
Signed-off-by: Gyorgy Szing <Gyorgy.Szing@arm.com>
diff --git a/docs/global_substitutions.txt b/docs/global_substitutions.txt
index 8011fc6..9493013 100644
--- a/docs/global_substitutions.txt
+++ b/docs/global_substitutions.txt
@@ -12,6 +12,8 @@
 .. |PSA| replace:: :term:`PSA`
 .. |FF-A| replace:: :term:`FF-A`
 .. |TRUSTZONE| replace:: :term:`TrustZone`
+.. |NWd| replace: :term:`Normal World`
+.. |SWd| replace: :term:`Secure World`
 
 .. _`TS Mailing List`: https://lists.trustedfirmware.org/mailman3/lists/trusted-services.lists.trustedfirmware.org/
 .. _`TS repository`: https://review.trustedfirmware.org/admin/repos/TS/trusted-services