Add example_partition from tf-m-tools

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: I29baec63c1ea8e06457b92a6277fc5f2fa9ec335
diff --git a/examples/examples_readme.rst b/examples/examples_readme.rst
index c36c6d6..9b7faac 100755
--- a/examples/examples_readme.rst
+++ b/examples/examples_readme.rst
@@ -29,6 +29,17 @@
 -----------
 Jianliang Shen `<jianliang.shen@arm.com> <jianliang.shen@arm.com>`_
 
+example_partition
+=================
+
+Description
+-----------
+A simple secure partition implementation.
+
+Maintainers
+-----------
+Jianliang Shen `<jianliang.shen@arm.com> <jianliang.shen@arm.com>`_
+
 ---------------------------
 
 *Copyright (c) 2021-2022, Arm Limited. All rights reserved.*