Update test documentation

ipmininet/tests/README.md

@@ -1,20 +1,20 @@
 # Ipmininet tests
 The [pytest](https://docs.pytest.org/en/latest/index.html) framework is used
-for the testsuite and are [integrated within
+for the test suite and are [integrated within
 setuptools](https://docs.pytest.org/en/latest/goodpractices.html#integrating-with-setuptools-python-setup-py-test-pytest-runner).
 Currently the suite has end-to-end tests that check if the daemons work as
 expected. Therefore, the tests require an operating environment, i.e.  daemons
 have to be installed and must be in PATH. 
 
-## Run testsuite
-To run the whole testsuite go the top level directory and run:
+## Run test suite
+To run the whole test suite go the top level directory and run:
 
 ```
-sudo python setup.py test
+sudo pytest
 ```
 
 You can also run a single test by passing options to pytest:
 
 ```
-python setup.py test --addopts "ipmininet/tests/test_sshd.py --fulltrace"
+sudo pytest ipmininet/tests/test_sshd.py --fulltrace
 ```