Just noticed a missing b for the <=> operator example on the expressions doc page.

fixed - thanks

There is a typo on expressions doc page http://www.fandev.org/doc/docLang/Expressions.html

s[start..<end] => "ab"

We use .. to specify an inclusive end index, and ..< to specify an exclusive start index. - should be an exclusive end index

A tour note: I'd add fan specific [,] and [:] to Literals section since they are used later for closure examples.

fixed Expression doc and added your suggestion to Tour

thanks!