Bump version to 0.6.1

Bump version to 0.6.0

Merge pull request #7 from tommarshall/6-fix-imperative-mood-false-po…

…sitives

Fix imperative mood false positives

Merge pull request #5 from tommarshall/4-handle-autosquash-flags

Handle autosquash flags

Merge pull request #3 from tommarshall/add-support-for-color-override

Add support for color override

Merge pull request #2 from tommarshall/ignore-trailing-whitespace

Ignore trailing whitespace

Set checksum in README for v0.1.0