title: How to indent in GitHub wiki's editor?
body: <p>I'm using chrome with macbook. When I attempt to use <code>tab</code> to indent code blocks in GitHub wiki's editor/textarea, I fail miserably because tab is meant for shifting focus between fields ... as it should be in a browser.</p>
  
  <p>I tried the outdated advice from the web:</p>
  
  <blockquote>
    <p>In order to actually insert a tab you need to press the following key combination: ctrl + alt + tab. Note: depending on your keyboard, the alt key is sometimes called the option key.`</p>
  </blockquote>
  
  <p>But it does <em>NOT</em> work.</p>
  
  <p>On gitlab its easy to use <code>tab</code> because they have a full-screen mode in their wiki. But I'm stuck working on a GitHub repository's wiki.</p>
  
  <p>So question(s):</p>
  
  <p>a) How to indent a line in GitHub wiki's editor or textarea?</p>
  
  <p>b) How to indent a a selected set of lines in GitHub wiki's editor or textarea?</p>