documentation 10.2 duplication (workers)

[Neon22]

Under Web Workers in the User guide section there is some doc about Workers and a quiet link to the Built-in APIs section.
This Web Workers section is where this docs has 'traditionally' been found.

Now in Built-in APIs we see a lot more info, some duplicated from Web Workers, including new info e.g. about the Donkey.

My request is to move all the info with examples to one place. Manually comparing the different code in the two places to try to work out how it works, and is the code fragment new or different in some way, is difficult.

[ntoll]

Yeah, this is something on my todo list.