The project language file for this project is Markdown, as this project (URLL-Specification) is mainly just an article, and needs nothing more.
This is a rare instance in whuich I am using Markdown as a project language file, as I learned how to make the GitHub linguist recognize Markdown as a language. I found this out when snooping around on Apple/Swift Evolution if you want to do this yourself, simply add this to your .gitattributes file (if you haven't created one yet, make it now, do not add anything else to the file name but .gitattributes)
*.md linguist-detectable=true
*.md linguist-documentation=falseFile type: Markdown document (*.md)
File version: 1 (Monday, July 12th 2021 at 9:10 pm)
Line count (including blank lines and compiler line): 26