Adding margins to site. Created CSS file so others can make further improvements

README.md

@@ -3,6 +3,8 @@ title: Software and data for "A Computational Analysis of Social Media Scholarsh
 output: html_document
 --- 
 
+<link rel='stylesheet' href='./simple.css'>
+
 > **Authors:** [Jeremy Foote](http://jeremydfoote.com/), [Aaron Shaw](http://aaronshaw.org/), [Benjamin Mako Hill](https://mako.cc/academic/)<br />
 > **Archival copies of code and data:** <https://dx.doi.org/10.7910/DVN/W31PH5><br />
 > **License:** see [COPYING file](COPYING): code is released under [GNU GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) or any later version; chapter is released as [CC BY-NC-SA](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).

simple.css

@@ -0,0 +1 @@
+body {margin: 0 15% auto 10%; padding: 0;}