Where is the html on FCC's github

I am currently doing a first timer in Github, where I need to edit the wording of the instruction, but I can’t find the HTML of the page. P.S the page is https://www.freecodecamp.com/challenges/understanding-uninitialized-variables thank you

They are generated automatically.
Here is the index pages: https://github.com/freeCodeCamp/freeCodeCamp/tree/staging/server/views, these files will be processed and turned into HTML by the server.