Docs incorrectly state `rf_with_no_data` is Python only.

[metasim]

Documentation: https://rasterframes.io/reference.html#rf-with-no-data

Function decl: https://github.com/locationtech/rasterframes/blob/44f40726b79e4b3600d6990b73c815b6f891be07/core/src/main/scala/org/locationtech/rasterframes/functions/TileFunctions.scala#L124-L131