doc: Add an example for `Array.sort()`
doc: Add an example for `Array.sort()`

This may help people understand the difference between alphabetical
and natural order more quickly.

(cherry picked from commit 1de9118c5fee6201ea1e9eb4be9b00867f536520)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot