doc: Move content to new About chapter

This new chapter is created to hold project-related info
such as methods of contact, supported platforms, and so on.

Change-Id: Ifece3a8d9ba7f7862416a0c81a8707833da4aec7
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
Signed-off-by: Jimmy Brisson <jimmy.brisson@arm.com>
diff --git a/docs/about/features.rst b/docs/about/features.rst
new file mode 100644
index 0000000..16055fc
--- /dev/null
+++ b/docs/about/features.rst
@@ -0,0 +1,16 @@
+Feature Overview
+================
+
+Still to come
+`````````````
+
+-  More tests.
+-  Support for new platforms.
+-  Design improvements.
+-  Stability improvements.
+-  Enhance test framework to make it easier to implement tests.
+-  Fixing known issues (see the `change log`_ for more details).
+
+--------------
+
+*Copyright (c) 2019, Arm Limited. All rights reserved.*