explain lingua evalia in the go readme

go/README.md

directory and it tries to detect what it is and how to run it.
run `qst .` to run anything.
## Lingua evalia - evaluate anything!
Lingua evalia has also grown up recently, it now lives [on it's own](https://github.com/heyLu/linguaevalia)
as well. You can get it using `go get github.com/heyLu/linguaevalia` and
then start it by running `$GOPATH/bin/linguaevalia`.
Lingua evalia is a web service and a command line tool that allows you
to run code in any language quickly and easily. Using the web server
is simple: you open the site, start writing code and then press
`ctrl-enter` to evaluate it.