chore(docs): update usage guide & examples

[codecov[bot]]

Codecov Report

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

Project coverage is 90.36%. Comparing base (755b20d) to head (bbf6b9f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #337 +/- ## ========================================== - Coverage 90.39% 90.36% -0.03% ========================================== Files 34 34 Lines 3653 3653 ========================================== - Hits 3302 3301 -1 - Misses 283 284 +1 Partials 68 68 ```

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[dundee]

Thanks @ramgp!