Update changelog.md, fix typo(s)

[NicholasWilsonDEV]

I really enjoyed using this project, nice work! Caught a couple of typos in the changelog.md though 😛

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2245c64) to head (5e481bd).
Report is 19 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff            @@
##              main      #874   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines         1354      1400   +46     
  Branches       113       102   -11     
=========================================
+ Hits          1354      1400   +46     

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[wooorm]

Thank you! :)