Would like to contribute the Python spec

[eddiebergman]

Ello, seems like a nice plugin to build an auto-doc tool. I'm primarily a python user and the repo currently doesn't support python. I'd like to contribute but I would need some guidance.

Firstly, attempting to compile it myself already runs into issues.

$ make dep
$ make compile
> Error detected while processing command line:
Compile error in fnl/nvim-tree-docs/collector.fnl:45
  tried to reference a macro at runtime
    (not (. entry key))