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Update documentation with info about required permissions.
#### Does this PR need a docs update or release note?
- [x] ✅ Yes, it's included
#### Type of change
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- [x] 🗺️ Documentation
#### Issue(s)
#### Test Plan
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- [x] 💪 Manual
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#### Does this PR need a docs update or release note?
- [ ] ⛔ No
#### Type of change
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- [ ] 🧹 Tech Debt/Cleanup
#### Issue(s)
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#### Test Plan
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- [ ] 💪 Manual
## Description
Fix issues found by screaming frog
- Use https:// for links
- Add missing cookies page back
- Add missing alt-text
- Use dashes instead of underscores for better search engine indexing
- Fix internal redirects
## Does this PR need a docs update or release note?
- [x] ⛔ No
## Type of change
- [x] 🐛 Bugfix
