title: GitHub for Mac: Can't commit and sync or just commit because I have to add files before
body: <p>I can't commit and sync files from the GitHub for Mac App because the app says that I have to add the files previously, but I want to the app do that for me. I don't want to go to the terminal to <code>git add -A</code> every time. My partner can commit and sync and the GitHub for Mac app adds the files for him.</p>
  
  <p>This is the error that the app returns:</p>
  
  <pre><code>Git Error:
  
  On branch master Changes not staged for commit: (use "git add ..." to
  update what will be committed) (use "git checkout -- ..." to discard
  changes in working directory)
  
  modified: .gitignore
  
  ... more files here :)
  
  no changes added to commit (use "git add" and/or "git commit -a")
  (256)
  </code></pre>
  
  <p>How do I fix this?</p>