docs(installation): update zed installation instructions to include setting the --stdio flag

[luhagel]

Until the zed extension handles this natively, Zed users need to add an extra arguments setting within the lsp section of their config.

[luhagel]

Talking about the Zed Extension handling it natively: zed-extensions/elixir#45

[doorgan]

It seems that PR was already merged, so maybe we could update the docs here to indicate how to pass the --port <port> flag if you want to use tcp mode instead?

[luhagel]

Works for me - I'd maybe consider merging this for now, as there can be a couple days to a couple weeks delay between merging and publishing, had that with HEEX support for the emmet extension a few month ago.
So maybe get the info out there now (optionally amended with the tcp docs) and then counter-commit once it's actually available to the public?

Just let me know your preferred path of action and I'm happy to oblige

(Or just scrap it, it's not like I poured hours of work into this ^^)

[doorgan]

there can be a couple days to a couple weeks delay between merging and publishing

Ah got it, makes sense then, let's merge this