[TASK] replaced polyfill.io

[dontWatchMeCode]

Description

Hello,

Readme / example changes that replace the polyfill.io domain.

Reason: supply chain attack polyfill.io domain

https://blog.cloudflare.com/tag/supply-chain-attacks

Not urgent (polyfill.io ⇒ blocked / offline) but should be replaced.

best Request / have a nice day

Types of changes

• Chore (tooling change or documentation change)
• Refactor (non-breaking change which maintains existing functionality)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• My code follows the code style of this project.
• I have added new tests for the bug I fixed/the new feature I added.
• I have modified existing tests for the bug I fixed/the new feature I added.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[dontWatchMeCode]

Missed #1161