Make README.md ReST-friendly

Description at PyPI looks ugly with all these hashes. Changed according
to https://gist.github.com/dupuy/1855764

Change-Id: I070a245d417cf36f115741418764630d053da476

README.md

@@ -1,11 +1,13 @@
-# git-review
+git-review
+==========
 
 A git command for submitting branches to Gerrit
 
 git-review is a tool that helps submitting git branches to gerrit for
 review.
 
-## Setup
+Setup
+-----
 
 git-review, by default, looks for a git remote called gerrit, and
 submits the current branch to HEAD:refs/for/master at that remote.
@@ -16,42 +18,45 @@ the gerrit remote.  Assuming that file is present, git-review should
 be able to automatically configure your repository the first time it
 is run.
 
-## Usage
+Usage
+-----
 
-Hack on some code, then:
+Hack on some code, then::
 
     git review
 
-If you want to submit that code to a branch other than "master", then:
+If you want to submit that code to a branch other than "master", then::
 
     git review branchname
 
-If you want to submit to a different remote:
+If you want to submit to a different remote::
 
     git review -r my-remote
 
-If you want to supply a review topic:
+If you want to supply a review topic::
 
     git review -t topic/awesome-feature
 
-If you want to submit a branch for review and then remove the local branch:
+If you want to submit a branch for review and then remove the local branch::
 
     git review -f
 
-If you want to skip the automatic "git rebase -i" step:
+If you want to skip the automatic "git rebase -i" step::
 
     git review -R
 
-If you want to download change 781 from gerrit to review it:
+If you want to download change 781 from gerrit to review it::
 
     git review -d 781
 
-If you just want to do the commit message and remote setup steps:
+If you just want to do the commit message and remote setup steps::
 
     git review -s
 
-## .gitreview file format
-Example .gitreview file (used to upload for git-review itself)
+.gitreview file format
+----------------------
+
+Example .gitreview file (used to upload for git-review itself)::
 
     [gerrit]
     host=review.openstack.org
@@ -63,17 +68,23 @@ Required values: host, project
 
 Optional values: port (default: 29418), defaultbranch (default: master)
 
-### Notes
+**Notes**
+
 * Username not required because it is requested on first run
+
 * Unlike git config files there cannot be any whitespace before the name of the variable.
+
 * git-review will create a gerrit remote upon first run
 
-## Installation
+Installation
+------------
+
 Install with pip install git-review
 
 For installation from source simply add git-review to your $PATH
 
-## Contributing
+Contributing
+------------
 
 To get the latest code, see: https://github.com/openstack-infra/git-review
 
@@ -83,7 +94,7 @@ There is a mailing list at: http://lists.openstack.org/cgi-bin/mailman/listinfo/
 
 Code reviews, as you might expect, are handled by gerrit at: https://review.openstack.org
 
-Use `git review` to submit patches (after creating a gerrit account that links to your launchpad account). Example:
+Use ``git review`` to submit patches (after creating a gerrit account that links to your launchpad account). Example::
 
     # Do your commits
     git review