Cleanup the tempest readme
This commit makes several needed cleanups and improvements to the
tempest readme to make things clearer and elaborate on some sections.
Also as the readme is intended to be a tempest users guide, this moves
sections which are more developer focused to the hacking guide.
Change-Id: I4180ce18268443873fe7d8d5e7d0aaebc2cd1e08
diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index f772aa3..a7c8fb7 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -1,3 +1,5 @@
+.. _tempest-configuration:
+
Tempest Configuration Guide
===========================