RELEASE.md

Release process

1. Update version.rb
2. Update version in README example
3. Update CHANGELOG.md
4. Ensure screenshots are up to date
5. Push to github and ensure tests pass
6. export NEXT_VERSION=vx.x.x
7. docker build -t bugcrowd/test-summary-buildkite-plugin:$NEXT_VERSION .
8. git tag --sign $NEXT_VERSION -m "Release $NEXT_VERSION"
9. docker push bugcrowd/test-summary-buildkite-plugin:$NEXT_VERSION
10. git push origin $NEXT_VERSION
11. Copy changelog entry to github release notes