title: Uppercasing First Letter of Words Using SED
body: <p>How do you replace the first letter of a word into Capital letter,
  e.g.</p>
  
  <pre><code>Trouble me
  Gold rush brides
  </code></pre>
  
  <p>into </p>
  
  <pre><code>Trouble Me
  Gold Rush Brides
  </code></pre>