title: Auto tagging a commit in Github
body: <p>When I make a chunk of changes I wish to tag as a version. 
  I add <code>git tag v1.4</code> etc</p>
  
  <p>How can I automatically add this to the commit I do for these changes, at the moment I am tagging the commit # after I have done the commit and pushed it.</p>
  
  <p>ie: </p>
  
  <pre><code>git tag -a v1.2 cd8a721 -m "Message here"
  </code></pre>