A checklist for docstring proofreading

[wehs7661]

As a part of issue #41, here is a checklist for keeping track of the progress of proofreading docstrings of all modules in ensemble_md.

• [x] replica_exchange_EE.py
• [x] utils
  • [x] exceptions.py
  • [x] gmx_parser.py
  • [x] utils.py
• [x] analysis
  • [x] analyze_traj.py
  • [x] analyze_matrix.py
  • [x] analyze_free_energy.py
  • [x] clustering.py
  • [x] synthesize_data.py
  • [x] msm_analysis.py
• [x] cli
  • [x] explore_REXEE.py

[wehs7661]

Closing the issue as this has been addressed by PR #48.