further "join the discussion" Redwood Installation copy

this is Part 2 of https://github.com/redwoodjs/redwood/issues/811 and #889

[ ] make two sections: current one for community, second for Tutorial and Docs
[ ] add redirect for signup via Netlify settings on .com
[ ] cleanup and/or redirect discord server (probably not necessary)

Merging content originally in #200 Other ideas for improvements, which we should scrutinize as we don’t want to overdue it.

CLI help/commands -- or list main commands
cleaner text for cd your-new-dir then yarn rw dev
git init && git add . then first commit

Perhaps we need a "Next Steps" page to link to on website -- bare-bones how to get started and helpful links. Maybe?

Example from CreateReactApp

Created git commit.

Success! Created my-app at /Users/price/Repos/my-app
Inside that directory, you can run several commands:

  yarn start
    Starts the development server.

  yarn build
    Bundles the app into static files for production.

  yarn test
    Starts the test runner.

  yarn eject
    Removes this tool and copies build dependencies, configuration files
    and scripts into the app directory. If you do this, you can’t go back!

We suggest that you begin by typing:

  cd my-app
  yarn start

Happy hacking!

redwoodjs / redwood

further "join the discussion" Redwood Installation copy #909