Various `README` suggestions

[trexfeathers]

🚀 Pull Request

Description

Updating dead links, out-dated code, and a couple of other suggestions

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.18%. Comparing base (ef4dc5a) to head (9d551ff).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #826 +/- ## ======================================= Coverage 91.18% 91.18% ======================================= Files 58 58 Lines 2939 2939 ======================================= Hits 2680 2680 Misses 259 259 ```

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[trexfeathers]

Thanks @bjlittle!