README vlad sample is incorrect

[jasonh-logic2020]

Hello,

Your sample fork + vlad implementation is incorrect.

Where the README looks at errors

(first (get errors (list "name")))

vlad actually returns a keyword

(first (get errors (list :name)))

[Lucio D'Alessandro]

Vlad accepts strings as well as keywords. It’s up to the developer to be consistent with one or the other :)