Modify doc/conf.py
Modify doc/conf.py

Append relative paths to code rather than prepending it to achieve a
preference for the locally installed verstion. This is needed in virtualenvs
when there is no control to issue a local build first, just pip-installing.
Workaround for readthedocs.io build trouble.

EMS-TU-Ilmenau/fastmat,EMS-TU-Ilmenau/fastmat,EMS-TU-Ilmenau/fastmat