Release 4.4.0

4.4.0 / 2021-09-25

• [FEATURE] Add Markdown Headers to JSON:API output #60 from @mansona
• Update dependencies #62 from @mansona
• Add Mocha test linting #61 from @mansona
• simplify markdown-to-jsonapi test #59 from @mansona
• remove changelog preview and update scripts #58 from @mansona
• move from travis to github actions #57 from @mansona
• Update README.md #56 from @MelSumner