Vale Prose Linter

- source :: https://github.com/errata-ai/vale/

Installing Vale

[[https://duncan.codes/posts/2020-09-14-prose-linting-vale-emacs.org/index.html][Setting Vale up with Flychecker]] provides some good instructions for getting this setup. I actually cloned the vale repo and built it locally using the usual make, make install routine. FreeBSD has no packages, and the project defaults to brew as a package manager which is not good.

I also had to copy the `styles` folder from the src repo to `/usr/local/share/vale`