Convert docs from md to rst

This patches converts the README and other files  to rst since that
is the widely accepted format versus markdown.

Change-Id: I68782f37d7339d7d26772a9f9e23a80debe159d0

CONTRIBUTING.rst

@@ -15,5 +15,3 @@ Pull requests submitted through GitHub will be ignored.
 Bugs should be filed on Launchpad, not GitHub:
 
     https://bugs.launchpad.net/anchor
-
-

README.rst

@@ -1,5 +1,5 @@
 Anchor
-============
+======
 
 Anchor is an ephemeral PKI service that, based on certain conditions,
 automates the verification of CSRs and signs certificates for clients.
@@ -283,5 +283,5 @@ namespace and can take parameters just like validators.
 Reporting bugs and contributing
 ===============================
 
-For bug reporting and contributing, please check the CONTRIBUTING.md
+For bug reporting and contributing, please check the CONTRIBUTING.rst
 file.

setup.cfg

@@ -2,7 +2,7 @@
 name = anchor
 summary = Webservice to auto-sign certificates for short amount of time
 description-file =
-    README.md
+    README.rst
 author = OpenStack Security Group
 author-email = openstack-dev@lists.openstack.org
 home-page = https://wiki.openstack.org/wiki/Security/Projects/Anchor