adding a placeholder release notes rst file

Issue-ID: CPS-179

Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: I0b001f14bcc9302bc2a0d64a2de02408688e84b0
diff --git a/docs/index.rst b/docs/index.rst
index 81c485f..a7c1b93 100755
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -11,4 +11,7 @@
 .. toctree::
    :maxdepth: 1
 
+   architecure.rst
    offeredapis.rst
+   release-notes.rst
+