Update README.md

[mainrs]

No description provided.

[codecov]

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%)	⬇️
src/extension/util.rs	98.14% <0.00%> (-1.86%)	⬇️
src/extension/itunes/itunes_channel_extension.rs	81.48% <0.00%> (-1.24%)	⬇️
src/extension/itunes/itunes_item_extension.rs	83.90% <0.00%> (-1.15%)	⬇️
src/extension/dublincore.rs	58.18% <0.00%> (-0.91%)	⬇️
src/channel.rs	78.89% <0.00%> (-0.40%)	⬇️
src/item.rs	80.95% <0.00%> (-0.15%)	⬇️
src/util.rs	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7820de8...6564d34. Read the comment docs.

[mainrs]

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