Project documentation is built using Sphinx docs, which uses ReST for markup. This allows the docs to cover a vast amount of topics without using a thousand-line README file.
Sphinx docs is pip-installable via pip install sphinx. Once installed, open a command line in the docs folder and run make html; the output files will be placed in the _build/html/ directory, and can be browsed (locally) with any browser.
The docs can also be found online at http://bootstrap-datepicker.readthedocs.org/.