title: Separate values from category in the same column
body: <p>I have a column that looks like this</p>
  <pre><code>value 
  Ford
  2,300
  Chevy
  15
  Toyota
  245
  </code></pre>
  <p>And I want to transform it and I'm looking for something like this</p>
  <pre><code>Brand     Value
  Ford      2,300
  Chevy     15
  Toyota    245
  </code></pre>
  <p>What's the best way to get here using a tidyvere solution?</p>