title: Trying to push changes to github repo
body: <p>I'm trying to push changes from my local machine to my github repo and it's not working.</p>
  
  <p>I have committed locally:</p>
  
  <pre><code>nate@nate-desktop:~/PycharmProjects/TrendFollowing$ git commit -m "Change the underlying data type for time series from a list of dictionary entries to numpy arrays"
  # On branch master
  # Changed but not updated:
  #   (use "git add &lt;file&gt;..." to update what will be committed)
  #   (use "git checkout -- &lt;file&gt;..." to discard changes in working directory)
  #
  #   modified:   trendfollowing/breakouts.py
  #   modified:   trendfollowing/extrema.py
  #   modified:   trendfollowing/test/breakouts_test.py
  #   modified:   trendfollowing/test/timeseries_extrema_test.py
  #   modified:   trendfollowing/test/timeseries_test.py
  #   modified:   trendfollowing/timeseries.py
  #
  no changes added to commit (use "git add" and/or "git commit -a")
  </code></pre>
  
  <p>Next, I tried (just to be sure):</p>
  
  <pre><code>nate@nate-desktop:~/PycharmProjects/TrendFollowing$ git remote add origin git@github.com:natereed/trendfollowing.git
  fatal: remote origin already exists.
  </code></pre>
  
  <p>This command was provided by github when I setup the repo (I think).  I created a test project and substituted "test" with the name of my repo:</p>
  
  <pre><code>nate@nate-desktop:~/PycharmProjects/TrendFollowing$ git push -u origin master
  Branch master set up to track remote branch master from origin.
  Everything up-to-date
  </code></pre>
  
  <p>Why is it not pushing my changes?</p>
  
  <p>EDITED: Added missing error message ("no changes added to commit")</p>