Updates to Trail Spec Page

A few changes:

- Updated the Wufoo intake for per the desires of the Comms team (now with checkboxes!)
- Ditched the hard-coded blog post now that it is up and link-able over on the actual blog
- Updated the trail spec tables and code snippets to reflect updates to the spec itself
- Added Nate Goldman as an Advisor to the process (King Arthur headshot).