Merge pull request #114 from anx-cbenke/update_version_matrix

removed reference to requirements_test.txt

Author: anx-cbenke

README.md

@@ -349,7 +349,6 @@ unit tests.
 
 Use this code snippet to run tests:
 ```bash
-pip install -r requirements_test.txt
 python setup.py install
 cd tests
 python manage.py test