fixup newline

Author: cameraMeasurementTech

src/tokens.md

@@ -217,6 +217,7 @@ as a destructive operation which forces you to forget the count. This allows
 for the "comparison" of two counts (such (as (balanced) (parens))) but not 3+.
 
 See [the proof for more formal details](https://github.com/rust-lang/rust/blob/5187be620c76a313a19b9b596e1bce3a80a345dd/src/grammar/raw-string-literal-ambiguity.md).
+
 Examples for string literals:
 
 ```rust