Browser addons — Google Chrome extensions

Jupyter Versioning & Comments – by Curvenote

Add cell based commenting and version-control to your local Jupyter Lab and Jupyter Notebook. These sync with your content on curvenote.com and allow you to collaboratively edit and version notebooks between your reports, presentations and your development environment.

By saving a cell or a notebook, it then becomes easy to share, version, comment and incorporate results into other documents!