On: Markdeep – plain text documents with diagrams, equ...

[aprdm]

You're likely looking at the output of a build process, instead you should have a look in the source code that is likely on github.

[kabacha → aprdm]

> you should have a look in the source code that is likely on github

I did and it's not there. The repo in my link _is_ the source, unfortunately.