codecov-haskell-0.3.0: CHANGELOG.md

+[0.3.0](https://github.com/guillaume-nargeot/codcov-haskell/issues?q=milestone:v0.3.0+is:closed)
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* Fix coverage result response reading (issue #5)

+[0.2.0](https://github.com/guillaume-nargeot/codcov-haskell/issues?q=milestone:v0.2.0+is:closed)
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* Fix coverage conversion rule for otherwise bug (issue #4)

0.1.0
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* Initial release