title: Regex expression for digit followed by dot (.)
body: <p>I want to find a text with with digit followed by a dot and replace it with the same text (digit with dot) and "xyz" string.
  For ex.</p>
  
  <pre><code>1. This is a sample
  2. test
  3. string
  
  **I want to change it to**
  1.xyz This is a sample
  2.xyz test
  3.xyz string
  </code></pre>
  
  <p>I learnt how to find the matching text (\d.) but the challenge is to find the replace with text.
  I'm using notepad ++ editor for this, can anyone suggest the "Replace with" string.</p>