Kyso's CLI tool plugs into any data source (e.g. Github, s3, Domino). It allows users to publish any document type they want (e.g. HTML, notebooks, data apps, markdown), where they are indexed & rendered as beautiful web-based reports with comments & tasks.
As the earliest investor, I am biased, but this is an amazing product, community for data nerds to share data science, charts, opinions and learn more.