At https://github.com/NLeSC/python-template/blob/214c9893cd129e370fbee0022816bbe8aa679ce7/%7B%7Bcookiecutter.project_slug%7D%7D/setup.cfg#L55 we install package to make Markdown possible in docs/ however in docs/conf.py it is not enabled. We should either remove the dev dep or [enable it](https://recommonmark.readthedocs.io/en/latest/#getting-started). Related to #162
