Added documentation for some tests
Added documentation for some tests

- Now reading configs from a file


Former-commit-id: 596ccdb7087295aeec475e7c41b4fbfed7428c12
openworm/PyOpenWorm,hnunner/PyOpenWorm,gsarma/PyOpenWorm,kaustubhcs/PyOpenWorm,travs/PyOpenWorm,openworm/PyOpenWorm,gsarma/PyOpenWorm