" \t\r\n" string literal does not look well with proportional fonts (it seems sometimes that the space is just missing) or if word-wrapping is applied
//!
//! The `ws!` combinator will modify the parser to
//! intersperse space parsers everywhere. By default,
-//! it will consume the following characters: " \t\r\n".
+//! it will consume the following characters: `" \t\r\n"`.
//!
//! If you want to modify that behaviour, you can make
//! your own whitespace wrapper. As an example, if
@@ -856,7 +856,7 @@ where
///
/// transforms a parser to automatically consume
/// whitespace between each token. By default,
-/// it takes the following characters: " \t\r\n".
+/// it takes the following characters: `" \t\r\n"`.
///
/// If you need a whitespace parser consuming a
/// different set of characters, you can make
