title: Making changes to a git tag and repushing
body: <p>Can I go into a <code>tag</code> in <code>git</code> and make changes and repush that tag and new changes?</p>
  
  <p>I tried:</p>
  
  <pre><code> git tags
       0.2.0
       0.2.1
  
   git checkout 0.2.0
  </code></pre>
  
  <p>Then I made some changes and did:</p>
  
  <pre><code> git add .
   git commit -a -m "Cleanup."
   git push --tags
  </code></pre>
  
  <p>But it is saying no changes to push.</p>