There is a special website that documents everything regarding Spec-Up-T.
Important: the files in /spec are identical to those in https://github.com/blockchainbird/spec-up-t-starter-pack/tree/main/spec-up-t-starterpack/spec. If one of the copies is modified, it must be copied over to the other copy. Also make sure the "markdown_paths" in specs.json are still correct.