Link to blog in the footer

[kburk1997]

In app/views/layouts/application.html.erb and app/views/layouts/application.html.erb, we have a footer that should look like this:

<footer class="footer" id="contribute">
  <div class="container-fluid">
    <p>
      <div class="col-xs-8">
        Part of <a href="http://rcos.io">Rensselaer Center for Open Source</a>
      </div>
      <div class="col-xs-4">
        <a href="https://github.com/kburk1997/BettereBinder">Source Code</a>
      </div>
    </p>
   </div>
</footer>

In the col-xs-4 div and next to the link that says "Source Code", I would like a link to our blog.

Hint: the URL for our blog is https://rcos.io/projects/kburk1997/betterebinder/blog.

[kburk1997]

See pull request 2