Fire content debt - Get a public assembly permit

*Make sure to add the label "Content debt." If available, add the appropriate "Content type" or "Feature" label.*

Not live yet
https://alpha.austin.gov/en/preview/services/UGFnZVJldmlzaW9uTm9kZTozMDg1

**Have you documented this via the author notes field in Joplin?**
- [x] Yes!
- [ ] No, but I'll do it now

**Describe the content debt.**
Form needs to be transitioned to formstack, and a step added to the service page for payment instructions and instructions on what comes next.

Readability can also be improved
**What is the long-term, ideal solution for this content debt?**

**Is this related to a feature request issue? (Add the issue number below and add the issue as a dependency.)**

**What approvals will be needed to publish this content change?**
Austin Fire

Start with the linked Austin.gov preview service page and the Joplin author notes. Review the Formstack transition, the proposed payment and next-steps instructions, and the readability concerns; done means the form transition and service-page updates are complete and Austin Fire approval is obtained.

Written by the indexing model from the issue text.