Gather and review existing hiring research

[awfrancisco]

Though we'll be doing additional research during this project, it'd be good to gather and review any existing research on the TTS Join page, 18F join page, other recruitment materials, and feedback from candidates on the process.

• Gather research into a single folder
• Synthesize results with an eye toward applying it to this project
• Each member of the team individually reviews synthesis
• File new issues based on past research

[Dahianna]

Artifact Analysis of Join pages with recommendations: https://docs.google.com/document/d/1URJWH_gXLIKGDOdKAhZqvgJ1wo2p5PunVkze87uPeAI/edit#