title: Editing certain space in a line using Regular Expression
body: <p>Hello I have the txt file list:</p>
  <pre><code>asjd
  gsgs
  azda
  </code></pre>
  <p>I want to edit the 2nd spot on the line so it is such:</p>
  <pre><code>a-jd
  g-gs
  a-da
  
  </code></pre>
  <p>I have tried playing around with the \S reg expression but I am struggling. This is out of my knowledge. Thanks in advance.</p>