Update documents to guidelines spec

With the new guidelines being merged, all of the documents for the Pterodactyl API (and a few of the Wings API documents) need updating to the specification:

Application:
- [x] Locations
- [x] Nests/Eggs
- [x] Nodes
- [x] Users

Client:
- [x] Account
- [ ] Backups
- [ ] Databases
- [ ] Files
- [ ] Network
- [ ] Schedules
- [ ] Servers
- [ ] Settings
- [ ] Startup
- [ ] Users
- [ ] Index

Remote:
- [ ] Server Backups
- [ ] Server Installation
- [ ] Servers