Added info for using yarn berry with yarn 3.2.1

[Hecatron]

Hi,
I had a quick look around at seeing if I could use yarn berry with enableGlobalCache set to true.
I think yarn berry is generally discouraged although I've managed to I think get it working ok with a small change to the svelte.config.js

I suspect there's been some changes to yarn version 3 which now allows it to work (or at least allows the demo app to work)
This bug doesn't seem to exist anymore #2393

Also spotted these related to berry

• Incompatible with Yarn 2 #993
• Initialize SvelteKit project with Yarn #1557

Currently I'm using Windows and yarn version 3.2.1

[changeset-bot]

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[benmccann]

I don't know how much we want to encourage Yarn usage, but I guess if it basically works out-of-the-box then it doesn't hurt to give a suggestion. I'm curious what the other maintainers think though

[benmccann]

lgtm, but I will leave for the other maintainers to weigh in

[Rich-Harris]

I think this strikes the right balance between providing people with the right information and steering people towards tools with fewer... idiosyncracies — thanks 👍