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/source/components/agents/index.rst

@@ -0,0 +1,43 @@
+Agents
+======
+
+Coach supports many state-of-the-art reinforcement learning algorithms, which are separated into three main classes -
+value optimization, policy optimization and imitation learning.
+A detailed description of those algorithms can be found by navigating to each of the algorithm pages.
+
+.. image:: /_static/img/algorithms.png
+   :width: 600px
+   :align: center
+
+.. toctree::
+   :maxdepth: 1
+   :caption: Agents
+
+   policy_optimization/ac
+   imitation/bc
+   value_optimization/bs_dqn
+   value_optimization/categorical_dqn
+   imitation/cil
+   policy_optimization/cppo
+   policy_optimization/ddpg
+   other/dfp
+   value_optimization/double_dqn
+   value_optimization/dqn
+   value_optimization/dueling_dqn
+   value_optimization/mmc
+   value_optimization/n_step
+   value_optimization/naf
+   value_optimization/nec
+   value_optimization/pal
+   policy_optimization/pg
+   policy_optimization/ppo
+   value_optimization/rainbow
+   value_optimization/qr_dqn
+
+
+.. autoclass:: rl_coach.base_parameters.AgentParameters
+
+.. autoclass:: rl_coach.agents.agent.Agent
+   :members:
+   :inherited-members:
+