* Update docstring for geom_point() function. * Update examples in docstrings for geom.py. * Docstring: Remove word 'optional' from parameters description. * Docstring: Update data, map and map_join parameters description. * Docstring: Add linenos parameter to the example for point geometry. * Updated core.py docstrings. * Update examples in docstring core.py * Minor fixes. * Update coord.py docst