Change setup file to an .md file

environment_setup.txt is now environment_setup.md for easier viewing on
GitHub.

environment_setup.txt → environment_setup.md

@@ -1,20 +1,20 @@
 1. Use the pip tool to install virtualenv
 
-http://docs.python-guide.org/en/latest/dev/virtualenvs/
+    [Link](http://docs.python-guide.org/en/latest/dev/virtualenvs/)
 
 2. Create a virtual environment in an empty directory: 
 
-virtualenv -p <path to python3 executable> <path to empty directory>
+    `virtualenv -p <path to python3 executable> <path to empty directory>`
 
 3. cd into the directory you just created a virtual environment in, and clone our GitHub repo
 
-4. Activate the virtual environment 
+4. Activate the virtual environment from the command line
 
-source bin/activate
+    `source bin/activate`
 
 5. cd into the repository root directory, install all dependencies using pip
 
-pip -r requirements.txt
+    `pip -r requirements.txt`
 
 6. All set!