Fixed pre-commit issues with docstrings in mlagents-env base_env

docs/Python-API-Documentation.md

 <a name="mlagents_envs.base_env"></a>
 # mlagents\_envs.base\_env
 
-Python Environment API for the ML-Agents toolkit
+Python Environment API for the ML-Agents Toolkit
 The aim of this API is to expose Agents evolving in a simulation
 to perform reinforcement learning on.
 This API supports multi-agent scenarios and groups similar Agents (same
 
 **Arguments**:
 
-- `buffer`: 
+- `buffer`:
 
 **Returns**:
 
 
 **Arguments**:
 
-- `msg`: 
+- `msg`:
 
 **Returns**:
 

ml-agents-envs/mlagents_envs/base_env.py

 """
-Python Environment API for the ML-Agents toolkit
+Python Environment API for the ML-Agents Toolkit
 The aim of this API is to expose Agents evolving in a simulation
 to perform reinforcement learning on.
 This API supports multi-agent scenarios and groups similar Agents (same