Update README.md

[codecov[bot]]

Codecov Report

Merging #104 into master will decrease coverage by 0.37%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #104      +/-   ##
==========================================
- Coverage   79.65%   79.28%   -0.38%     
==========================================
  Files          24       24              
  Lines        1755     1752       -3     
==========================================
- Hits         1398     1389       -9     
- Misses        357      363       +6     

Impacted Files	Coverage Δ
src/extension/syndication.rs	69.81% <0.00%> (-1.89%)	:arrow_down:
src/extension/util.rs	98.14% <0.00%> (-1.86%)	:arrow_down:
src/extension/itunes/itunes_channel_extension.rs	81.48% <0.00%> (-1.24%)	:arrow_down:
src/extension/itunes/itunes_item_extension.rs	83.90% <0.00%> (-1.15%)	:arrow_down:
src/extension/dublincore.rs	58.18% <0.00%> (-0.91%)	:arrow_down:
src/channel.rs	78.89% <0.00%> (-0.40%)	:arrow_down:
src/item.rs	80.95% <0.00%> (-0.15%)	:arrow_down:
src/util.rs	100.00% <0.00%> (ø)

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[mainrs]

How does a markdown change result in less code coverage? :D