Add documentation on how to run unit testing (Closes #43)

- docker currently not supported for running unit testing /shrug
4 jobs for 43-unittests in 1 minute and 6 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Test
passed Go-py2.7 #2196

00:01:02

passed Go-py3.4 #2197

00:01:03

passed Go-py3.5 #2198

00:01:06

passed Go-py3.6 #2199

00:01:03

76.0%