Write Documentation

[clhenrick]

To Include:

• App structure:
  • Redux state shape
  • React Components vs Containers
  • Webpack build notes
  • SVG to React
  • SCSS
• Data flow
  • CARTO SQL API usage
• Use of memoized selectors via Reselect library
• Details of CARTO account (name, table, data wrangling)
• Web hosting via Github Pages
• Client name & org
• project date
• Related repositories (ETL script, Map App)
• some other things I'm probably forgetting right now

[clhenrick]

Added fairly in-depth docs on app structure and build system in 4a665ed