https://www.gitbook.com/ https://www.gitbook.com/ or https://docusaurus.io/ https://docusaurus.io/ by Facebook which gives more control and it seems you use Ja

https://www.gitbook.com/ https://www.gitbook.com/ or https://docusaurus.io/ https://docusaurus.io/ by Facebook which gives more control and it seems you use Javascript/React already for your frontend (https://news.ycombinator.com/item?id=25784642 https://news.ycombinator.com/item?id=25784642) Both use markdown.