Change references to "py.test" in SQLAlchemy tutorial test page

Paul Cutler

2018-10-03 171593c8c851ae0d0eafc7ff84e35e367a725b12

Change references to "py.test" in SQLAlchemy tutorial test page

Change the references of "py.test" to "pytest" per pytest 3.0 release
in the Jinja2 template page of the documentation in quick tutorial

 docs/quick_tutorial/jinja2.rst

@@ -50,7 +50,7 @@

   .. code-block:: bash

       $VENV/bin/py.test tutorial/tests.py -q
       $VENV/bin/pytest tutorial/tests.py -q
       ....
       4 passed in 0.40 seconds