Documentation
* **example:** Updated example files ([`f0305a4`](https://github.com/Jon-Ting/covdrugsim/commit/f0305a4a41d28af6cfe8bc5dfd60a8e2dfe3d50c))
* **__init__.py:** Fixed implicit name issue on readthedocs ([`544b5bf`](https://github.com/Jon-Ting/covdrugsim/commit/544b5bf59f539f49a7d24fbdd5b31a1d108cfc61))