Call for review: form-field-name: add a few examples

Hey folks,

This PR adds a few examples to the Form field has non-empty accessible name
rule. These examples are designed to ensure implementors can distinguish
between form controls that are named from content, and those that aren't.

https://github.com/act-rules/act-rules.github.io/pull/1711/

This is a 1 week review, and closes on October 5th. If you have any
comments or concerns, please request changes on the pull request.

-- 
*Wilco Fiers*
Axe-core product owner - Facilitator ACT Task Force - Co-chair ACT-Rules