Update the readme

README.rdoc

@@ -1,6 +1,19 @@
 = jira
 
-Description goes here.
+A command line interface to the Jira issue tracking system. 
+
+To use, create a '.jira' YAML file in your home directory. For example:
+
+   :jira_base: https://jira.your.domain
+   :pem: ~/yourcert.pem
+
+The 'pem' parameter is optional, but required if your jira
+installation uses SSL authentication. If you connect to Jira through a
+proxy set the HTTP_PROXY environment variable.
+
+To get a list of unopened tickets assigned to you:
+
+   $ jira list
 
 == Note on Patches/Pull Requests
 
@@ -9,8 +22,6 @@ Description goes here.
 * Add tests for it. This is important so I don't break it in a
   future version unintentionally.
 * Commit, do not mess with rakefile, version, or history.
-  (if you want to have your own version, that is fine but
-   bump version in a commit by itself I can ignore when I pull)
 * Send me a pull request. Bonus points for topic branches.
 
 == Copyright