update of api docstrings across coach and tutorials [WIP] (#91)

* updating the documentation website
* adding the built docs
* update of api docstrings across coach and tutorials 0-2
* added some missing api documentation
* New Sphinx based documentation

docs_raw/README.md

@@ -0,0 +1,31 @@
+# Coach Documentation
+
+Coach uses Sphinx with a Read The Docs theme for its documentation website.
+The website is hosted on GitHub pages, and is automatically pulled from the repository through the built docs directory.
+
+To build the documentation website locally, first install the following requirements:
+
+```
+pip install Sphinx
+pip install recommonmark
+pip install sphinx_rtd_theme
+pip install sphinx-autobuild
+pip install sphinx-argparse
+```
+
+Then there are two option to build:
+1. Build using the make file (recommended):
+
+```
+make html
+cp source/_static/css/custom.css build/html/_static/css/
+rm -rf ../docs/
+mkdir ../docs
+cp -R build/html/* ../docs/
+```
+
+2. Build automatically after every change while editing the files:
+
+```
+sphinx-autobuild source build/html
+```