collaborative markdown editor - SERP Analysis

https://hedgedoc.org/

https://homepage.hackmd.io/

https://www.reddit.com/r/Markdown/comments/17j55ph/a_markdown_editor_that_supports_collaborative/

https://medium.com/open-graphql/how-to-build-a-real-time-collaborative-markdown-editor-with-react-hooks-graphql-aws-appsync-dc0c121683f4

https://github.com/hackmdio/codimd

https://stackedit.io/

https://stackedit.io/app

https://onlinemarkdowneditor.dev/

https://www.markdownguide.org/tools/

https://erambler.co.uk/blog/collaborative-markdown-editing/