title: why does git can't track new directory?
body: <p>I was create new directory found git can't track.</p>
  
  <p><a href="https://i.stack.imgur.com/fNQOn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fNQOn.png" alt="enter image description here"></a></p>
  
  <p>then create test directory</p>
  
  <p><a href="https://i.stack.imgur.com/xkDgU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xkDgU.png" alt="enter image description here"></a></p>
  
  <p>git not track directory ?</p>
  
  <p>check ignore config:</p>
  
  <p><a href="https://i.stack.imgur.com/Z5U4D.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Z5U4D.png" alt="enter image description here"></a></p>
  
  <p>add new file <code>git</code> could work</p>
  
  <p><a href="https://i.stack.imgur.com/AQ1Xr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AQ1Xr.png" alt="enter image description here"></a></p>
  
  <p>this is bug something ?
  git version: 2.13.3</p>
  
  <p>Thank you very much</p>