Update Readme and tidy up

[adamayoung]

No description provided.

[codecov]

Codecov Report

Merging #52 (5f359f0) into main (8b97f90) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #52      +/-   ##
==========================================
- Coverage   98.19%   98.18%   -0.01%     
==========================================
  Files          78       78              
  Lines         885      881       -4     
==========================================
- Hits          869      865       -4     
  Misses         16       16              

Impacted Files	Coverage Δ
Sources/TMDb/Models/APIConfiguration.swift	100.00% <ø> (ø)
Sources/TMDb/Models/Certification.swift	100.00% <ø> (ø)
Sources/TMDb/Models/ImageMetadata.swift	100.00% <ø> (ø)
Sources/TMDb/Models/ImagesConfiguration.swift	100.00% <ø> (ø)
Sources/TMDb/Models/Media.swift	100.00% <ø> (ø)
.../TMDb/Services/Discover/MovieDiscoverService.swift	100.00% <ø> (ø)
...TMDb/Services/Discover/TVShowDiscoverService.swift	100.00% <ø> (ø)
Sources/TMDb/TMDbAPI.swift	40.00% <ø> (ø)
Sources/TMDb/Client/TMDbAPIClient.swift	97.67% <100.00%> (ø)
Sources/TMDb/Models/ImagesConfiguration+URLs.swift	100.00% <100.00%> (ø)
... and 2 more

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