docs: fix 'rune' phonetic spelling

[matthewCmatt]

The intro docs page for runes includes a flavor-text dictionary entry for "rune".
https://svelte.dev/docs/svelte/what-are-runes

This seems to have some special/invalid character, which is displayed differently in different browsers:

Browsers
Chromium
Firefox
Safari

This should be switched to something that displays normally on all popular browsers.

I opted to use the International Phonetic Alphabet notation from OED, but I'll gladly tweak it to anything that seems sensible and displays well on different browsers.

I didn't test this fix, as I don't have the docs site dev environment setup. Would be happy to set it up if needed, but the svelte-dev repo isn't super clear on how to run it against docs changes from this repository?

[changeset-bot]

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-svelte-15445-svelte.vercel.app/

[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@15445

[matthewCmatt]

Oop, didn't realize external PRs get a review app! Change should be visible at https://svelte-dev-git-preview-svelte-15445-svelte.vercel.app/docs/svelte/what-are-runes

Updated screenshots:

Browsers
Chromium
Firefox
Safari

[Rich-Harris]

thank you! this is what i get for using firefox