Bump version to 0.6.0

Merge pull request #35 from niden-code/phase-6.1

autocomplete and release fixes

updating changelog

adding autocomplete

Bump version to `0.5.1`

Update CHANGELOG.md

Ignore markdown files in push events

Refactor ZephirStubFileElementType to include debug name in constructor

Simplify conditions and streamline release process in GitHub workflow

Fix Gradle caching

Refactor CI configuration to enhance release process

Merge pull request #34 from niden-code/phase-6

updating changelog

adding documentation functionality