title: RegEx: Add characters after number
body: <p>I want to add the characters ,' after a number:</p>
  
  <p>Input example:</p>
  
  <pre><code>(1SomeText;.Hello
  (2SomeOtherText;.Hello
  (3SomeAnotherText;.Hello
  </code></pre>
  
  <p>Output should be:</p>
  
  <pre><code>(1,'SomeText;.Hello
  (2,'SomeOtherText;.Hello
  (3,'SomeAnotherText;.Hello
  </code></pre>