Fixed several sphinx WARNINGS, added more release text

Change-Id: Ia167a9d46ee48fbf27c6cd09d78fcf31f3d4aedf
diff --git a/howto/release/scripts/preparation.rst b/howto/release/scripts/preparation.rst
new file mode 100644
index 0000000..fb6de71
--- /dev/null
+++ b/howto/release/scripts/preparation.rst
@@ -0,0 +1,17 @@
+Release Utilities
+=================
+
+Known Issues
+------------
+.. list-table:: Helper Scripts
+   :widths: 10, 40
+   :header-rows: 1
+
+   * - Resource
+     - Description
+   * - `repo:voltha-release <https://github.com/joey-onf/voltha-release>`_
+     - Validate code base dependencies and versiosn for a VOLTHA release.
+   * - `repo:voltha-release/validate <https://github.com/joey-onf/voltha-release/tree/origin/master/validate>`_
+     - Early shell script version of voltha-release.
+   * - `repo:onf-release <https://github.com/joey-onf/onf-release>`_
+     - repo:onf-release