VOL-4840 - Tracking ticket for release documentation.

conf.py
-------
  o Define more external link macros to shorten URLs.

Misc
----
  o Updated comments on version strings and misc items.

Change-Id: Ib4bc650e575bdc4b5c6a666c4147c8b93a41e797
diff --git a/howto/index.rst b/howto/index.rst
index 1f23a6c..79f21af 100644
--- a/howto/index.rst
+++ b/howto/index.rst
@@ -7,4 +7,5 @@
    code/index
    edit_voltha_docs
    release/index
+   ssh_access
    voltha_repositories