doc/site/functions Fn.new() clarification [minor] (#931)
doc/site/functions Fn.new() clarification [minor] (#931)

In the description of Fn.new():
- Fix a typo
- Add the referent of "that" for clarity
munificent/wren,munificent/wren,munificent/wren,munificent/wren,munificent/wren,munificent/wren