fix: update the 404 docs link to latest version of Builder Documentation

[0xMillz]

Description

I replaced all the broken docs links in the repo that were 404s with @mulfdev's docs from 2 months ago. I did not write or edit the documentation myself, but I believe it is the most accurate and up-to-date information about Builder Protocol, and it is certainly better than a 404.

Motivation & context

I and several others at the BuilderDAO, as well as many users, prefer non-broken links to docs.

It changes a click to any link to the documentation from a HTTP 404 to a HTTP 2XX with content that is what a user would expect.

Code review

Type of change

• 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

• I have done a self-review of my own code
• Any new and existing tests pass locally with my changes
• My changes generate no new warnings (lint warnings, console warnings, etc)

[vercel]

@0xMillz is attempting to deploy a commit to the Nouns Builder Team on Vercel.

A member of the Team first needs to authorize it.