doc preview page

Stream: general

[Rob Lewis]

@Bryan Gin-ge Chen had a nice page for previewing markdown comments in PRs, but I can't find it linked from the website. What was the URL and where should we add a link? (Or is it there and I'm just missing it?)

[Sebastien Gouezel]

https://observablehq.com/@bryangingechen/github-lean-doc-preview