Correct minor docs error

[moverperfect]

Proposed Changes

1. This sentence should suggest to the user that they should replace main with master in the URLs not main with main

Readiness Checklist

Author/Contributor

• Add entry to the CHANGELOG listing the change and linking to the corresponding issue (if appropriate)
• If documentation is needed for this change, has that been included in this pull request

Reviewing Maintainer

• Label as breaking if this is a large fundamental change
• Label as either automation, bug, documentation, enhancement, infrastructure, or performance

[nvuillam]

It seems that we made too many replacements when migrating from master to main, thanks for catching :)