[www] Add CNAME that links to user research form

[ryankeairns]

The UX team is building a pool of people to conduct research/tests and we’d like to have uxresearch.habitat.sh point to the Google sign-up form below:

https://goo.gl/forms/GN7e7hXJmh1Vuk8P2

Thanks!

[ryankeairns]

Talked with @tashimi and got the 👍 to set this up, so I've added it to the Core Engineering project.

@apriofrost and I will handle adding links to this URL in other parts of the site as well in #2589

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We value your input and contribution. Please leave a comment if this issue still affects you.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We value your input and contribution. Please leave a comment if this issue still affects you.