Outline blockers to setting up DTF website on gh-pages

[patheard]

• 'Our goal was to have a quick site up and running to openly share information about what we're working on'
• we estimated x amount of time to achieve our goal.
• this is how it was at home
• this is how it was at SSC
• this is how we fix it.

[patheard]

@britthurley I've finished up the first version: https://github.com/dtf-ein/reading-material/blob/master/retrospectives/team-website.md

Let me know if you have any tweaks/comments!