Add tempest post-run cleanup script

Implemented all features defined in blueprint.

Change-Id: If3c9b82f85095eeb22bbf32841be534024213567
Implements: blueprint post-run-cleanup
diff --git a/doc/source/index.rst b/doc/source/index.rst
index d3118ac..bc4fc46 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -29,6 +29,15 @@
    field_guide/thirdparty
    field_guide/unit_tests
 
+---------------------
+Command Documentation
+---------------------
+
+.. toctree::
+   :maxdepth: 1
+
+   cleanup
+
 ==================
 Indices and tables
 ==================