title: git pull U, A and D tags: Meaning?
body: <p>git pull occasionally will give me messages as follows:</p>
  
  <p><img src="https://i.stack.imgur.com/bo75l.png" alt="screen shot of gitbash during pull attempt"></p>
  
  <p>I do not understand the tags of "U", "A", and "D". Can someone please tell me what these mean?  Thanks.</p>