v0.40.0

What's Changed

• chore: update issue templates by @yeonjuan in #322
• docs: add CONTRIBUTING.md by @yeonjuan in #321
• chore: add plugin meta by @yeonjuan in #325
• feat: update baseline data by @yeonjuan in #330
• feat: implement autofix in require-attrs by @yeonjuan in #331
• feat: implement language plugin by @yeonjuan in #323
• docs: fix docs by @yeonjuan in #332

Full Changelog: v0.39.0...v0.40.0