Be able to specify subdirectory for tree sitter grammars

[godalming123]

I'm creating an extension for ripple. The tree sitter grammar is here. How do I specify that the tree sitter grammar is not in the root of the git repository?

[boris-schwarz]

I think it's possible like this, if I understood correctly

[grammars.cfhtml]
repository = "https://github.com/github-account/repository-name"
rev = "<sha of the commit>"
path = "./subdirectory"