There are two errors one can say. First of all, you call chrome() and doc() but
you don't do anything with the string that they return. Add echo before like
echo chrome() at least.
Secondly, the procs don't actually return the string, you just create a local
var x and assign it, but you forgot to return it. Now... procs have an implicit
variable called result that you don't need to declare, so you can instead write:
proc chrome(): string =
result = "string"
...but in fact, you can also make the last line be an expression and Nim will
return that implicitly:
proc chrome(): string =
"string"
With those small changes it works
