update test command (fixes #41)

CONTRIBUTING.md

@@ -4,11 +4,12 @@ Thanks for contributing to Django Data Wizard!  Here are some guidelines to help
 
 ## Questions
 
-Feel free to use the issue tracker to ask questions!  We don't currently have a separate mailing list or active chat tool.
+Questions and ideas can be submitted to the [Django Data Wizard discussion board](https://github.com/wq/django-data-wizard/discussions).
 
 ## Bug Reports
 
-Bug reports can take any form as long as there is enough information to diagnose the problem.  To speed up response time, try to include the following whenever possible:
+Bug reports can be submitted to either [IterTable issues](https://github.com/wq/itertable/issues) or [Django Data Wizard issues](https://github.com/wq/itertable/issues).  Reports can take any form as long as there is enough information to diagnose the problem.  To speed up response time, try to include the following whenever possible:
+
  * Versions of Django and Django REST Framework
  * Expected (or ideal) behavior
  * Actual behavior
@@ -22,5 +23,6 @@ Pull requests are very welcome and will be reviewed and merged as time allows.
  * Ensure the PR passes lint and unit tests.  This happens automatically, but you can also run these locally with the following commands:
 
 ```bash 
-./runtests.sh # run the test suite
-LINT=1 ./runtests.sh # run code style checking
+python -m unittest discover -s tests -t . -v   # run the test suite
+flake8 # run code style checking
+```