Style Guide: Method Invocation is outdated

[Sporarum]

For example:
"""
Scala allows the omission of parentheses on methods of arity-0 (no arguments):

reply()
// is the same as
reply

"""
This is not allowed, at least in Scala 3:
https://scastie.scala-lang.org/8HKODlg1QXWvKbo0QfeLvw

There is also no mention of the inline keyword, which I believe to be now required for inline methods

[som-snytt]

The truth is rather subtle due to the Java exclusion and empty application not entirely excluded.

[Sporarum]

Yes yes of course, but that doesn't change the fact the page should be updated ^^