Add screenshot to README

README.md

@@ -3,6 +3,10 @@ Research Group Web Site Template
 
 This is a [Jekyll][]-based Web site intended for research groups. Your group should be able to get up and running with minimal fuss.
 
+<p align="center">
+<img src="screenshot.png" width="387" height="225" alt="screenshot of the template">
+</p>
+
 You can see the machinery working live at [our site][sampa].
 
 [sampa]: http://sampa.cs.washington.edu/
@@ -30,6 +34,8 @@ Setup
 4. Type `make` to build the site and then run `jekyll serve -w` to view your site.
 5. Keep adding content. See below for instructions for each of the various sections.
 
+[Python]: https://www.python.org/
+
 
 Publication List
 ----------------

_config.yml

@@ -1,7 +1,7 @@
 name: Awesome Research Group
 url: http://awesome.example.com
 
-exclude: [bibble, README.md, Makefile]
+exclude: [bibble, README.md, Makefile, screenshot.png]
 
 # use this library to parse Markdown
 markdown: redcarpet