changing the documentation

docs/build/html/examples/notebook_api_functionality.html

docs/build/html/examples/notebook_api_functionality.ipynb

...ild/html/examples/notebook_common_envelope_evolution.html

...ld/html/examples/notebook_common_envelope_evolution.ipynb

docs/build/html/examples/notebook_custom_logging.html

docs/build/html/examples/notebook_custom_logging.ipynb

docs/build/html/examples/notebook_extra_features.html

docs/build/html/examples/notebook_extra_features.ipynb

docs/build/html/examples/notebook_individual_systems.html

docs/build/html/examples/notebook_individual_systems.ipynb

.../html/examples/notebook_luminosity_function_binaries.html

...html/examples/notebook_luminosity_function_binaries.ipynb

...ld/html/examples/notebook_luminosity_function_single.html

...d/html/examples/notebook_luminosity_function_single.ipynb

docs/build/html/examples/notebook_massive_remnants.html

docs/build/html/examples/notebook_massive_remnants.ipynb

docs/build/html/examples/notebook_population.html

docs/build/html/examples/notebook_population.ipynb

docs/build/html/examples/notebook_solar_system.html

docs/build/html/examples/notebook_solar_system.ipynb