Detect {|Simple quoted strings|}

[nkrkv]

trafficstars

This is a perfectly valid string in ReasonML:

let s = {|I'm a string "with" quotes
  line breaks
  literal \backslashes,
  and $dollars with no special escaping|};

See https://reasonml.org/docs/manual/latest/string-and-char#quoted-string

Let’s highlight it?