Feature: Generate MDN descriptions for more APIs

[Bashamega]

Hello :)
Currently, the mdn-Comments script is generated only for web APIs, but there are other APIs as well.

I can modify the script to include, after #1993, if @saschanaz is okay with it.

[saschanaz]

You mean webassembly specifically? Then sure.

[Bashamega]

You mean webassembly specifically? Then sure.

I was thinking for CSS, and webassembly