Almost-finalized: Marketing F12 schedule

[Mel Chua]

> ...does this mean that if I change something on
> https://fedoraproject.org/wiki/Marketing_F12_schedule, I have to add my
> changes to another text file somewhere else?

Not if the change happens before Monday (at, say, 1400UTC - I know I 
won't be grabbing and sending the final freeze version before then).

> /me can already feel the synchronization problems.

Yup. In order to avoid that, here's how it's going to work:

https://fedoraproject.org/wiki/Marketing_F12_schedule will have that 
(lovely, wiki-editable) schedule until Monday 8/3, which is schedule 
freeze day.

On schedule freeze day, 
https://fedoraproject.org/wiki/Marketing_F12_schedule will change to 
contain 3 things:

1. a link to our frozen schedule (it'll look like 
http://poelstra.fedorapeople.org/schedules/f-12/f-12-design-tasks.html)

2. a link to our task queue (https://fedorahosted.org/marketing-team/, 
not yet populated with tasks); the tickets here will have more detail on 
the work needed for milestones, and it'll be here that we track our work

3. an explanation of both of the above and how they work together

--Mel