fix: Markdown base link

[refcell]

Description

CI is continuously failing on the coinbase blog link: https://www.coinbase.com/blog/introducing-base.

This PR changes the url to use the TLD https://base.org which shouldn't flake as easily.

[changeset-bot]

⚠️ No Changeset found

Latest commit: ff64e37

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[netlify]

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[mergify]

This PR has been added to the merge queue, and will be merged soon.

[tynes]

RIP

Issues found in 1 input. Find details below.

[/input/README.md]:
✗ [403] https://explorer.optimism.io/ | Failed: Network error: Forbidden

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.