Updated Testing section

Change-Id: I6e7bf4b85100b60e8e24ed6c0b65cc19b961f4ba
diff --git a/index.rst b/index.rst
index c38bc42..892631e 100644
--- a/index.rst
+++ b/index.rst
@@ -70,6 +70,17 @@
    deployment/deployment5G.rst
 
 .. toctree::
+   :maxdepth: 3
+   :caption: SD-Core Test Automation
+   :hidden:
+   :glob:
+
+   testing/about_system_tests
+   testing/sdcore_testing
+   testing/acceptance_specification
+
+
+.. toctree::
    :maxdepth: 2
    :caption: Troubleshooting Guide
    :hidden: