[General] Get Started Guide update

[Katie Capps Parlante]

I spoke with Pieter on Friday about next steps for the Getting Started 
Guide, and here is what we came up with:

- Chapter on Triage Workflow (using Mimi's input)
- Chapter on Calendaring (Bug 10412)
- Glossary
- Index (basically a list of the "How do I?" headings)
- Final sweep of copy edits
- Final sweep updating links (Bug 10706)

Pieter expected this work to take ~1 week.

In general I'm looking to wrap up most doc tasks by Sept 10 (next Monday).

Cheers,
Katie