title: Regex for two digit number followed by . for find and replace in vim
body: <p>I want to find out following string pattern in <code>vim</code> and replace it with some thing else. Can you please tell me <code>regex</code> for the same.</p>
  
  <pre><code> 1.
  11.
  20.
  21.
  99.
  </code></pre>
  
  <p>basically one / two digits followed by dot.</p>