[Racket](https://download.racket-lang.org/)
### installation
-`make install` or `raco pkg install`
+1. Run `make install` or `raco pkg install`
+2. Add `$HOME/.racket/7.9/bin` to your `$PATH`
+ (replacing `7.9` with whatever version you have installed)
### usage
`tt (FOLLOW-FILE)`