Remove or change before template bake example

[dveight]

Although this is an example of how to register callbacks it's probably best to remove or modify this as it will cause every bake to be set to 1000-2000.

ada/src/ada/nuke/registry/callbacks/globals/before/set_script_range.py

Line 14 in eb28449

nuke.Root()["first_frame"].setValue(1000)