Fix typos in README.md

[dfrishbuter]

No description provided.

[codecov-io]

Codecov Report

Merging #147 into master will decrease coverage by 8.67%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #147      +/-   ##
==========================================
- Coverage   82.13%   73.46%   -8.68%     
==========================================
  Files          57       41      -16     
  Lines        2234     1123    -1111     
==========================================
- Hits         1835      825    -1010     
+ Misses        399      298     -101

Impacted Files	Coverage Δ
CollectionKitTests/WaterfallLayoutSpec.swift
CollectionKitTests/RowLayoutSpec.swift
CollectionKitTests/BasicProviderSpec.swift
Sources/Other/CollectionReloadable.swift
Sources/Other/Deprecated.swift
...ollectionKitTests/ComposedHeaderProviderSpec.swift
CollectionKitTests/CollectionViewSpec.swift
CollectionKitTests/TestUils.swift
Sources/Addon/EmptyStateProvider.swift
Sources/Other/CollectionReuseViewManager.swift
... and 6 more

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