readme: Update CDN link for replayer

[fukouda]

There is no file under: https://cdn.jsdelivr.net/npm/rrweb-player@latest/dist/index.umd.cjs

but there is for: https://cdn.jsdelivr.net/npm/rrweb-player@latest/dist/index.js

[changeset-bot]

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Latest commit: b54a7a3

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[eoghanmurray]

I think the problem is upstream in cdn.jsdeliver as it doesn't point correctly to the latest release.
E.g. the umd.cjs is here:
https://cdn.jsdelivr.net/npm/[email protected]/dist/

[eoghanmurray]

Also that's pointing to 1.0.0 instead of 2.0.0 ...

[fukouda]

Ahh yeah, you're right;

https://cdn.jsdelivr.net/npm/rrweb-player@latest/dist/ redirects to: https://cdn.jsdelivr.net/npm/[email protected]/

Weird