Fixes @default comment on selfRequestsOnly config opt

[blister]

Description

Please describe what changes you made, and why you feel they are necessary. Make sure to include code examples, where applicable.

Corresponding issue:

Testing

Please explain how you tested this change manually, and, if applicable, what new tests you added. If you're making a change to just the website, you can omit this section.

Checklist

• [x] I have read the contribution guidelines
• [x] I have targeted this PR against the correct branch (master for website changes, dev for source changes)
• [x] This is either a bugfix, a documentation update, or a new feature that has been explicitly approved via an issue
• [x] I ran the test suite locally (npm run test) and verified that it succeeded

[blister]

I fixed this. Going to close out the weird PR https://github.com/blister/htmx/tree/3428-selfRequestOnly-default