Add instructions for setting up postgres locally (for new contributors)

[lpatmo]

Some of my notes from when I set it up locally (with @BethanyG's help):

- Set up postgres: https://wiki.postgresql.org/wiki/First_steps
- https://gist.github.com/ibraheem4/ce5ccd3e4d7a65589ce84f2a3b7c23a3
- createuser --interactive --pwprompt
- createdb cbv3

I'll need to double check exactly what I did. Luckily I still have the recording of it!

[brylie]

By the way, are we publishing codebuddies related hangouts on a particilsr channel or keyword tag? It would be cool to see all the Codebuddies content somehow related.

I am live-streaming on Twitch then uploading to YouTube, and can add a Codebuddies tag to the uploads. It would also be good to know how to use Twitch for Codebuddies hangouts.

[lpatmo]

I've been forwarding Twitch streams on twitch.tv/codebuddies over to CodeBuddies' YouTube channel on https://www.youtube.com/channel/UCOBp46r9_g8kKRCc0y-rJVg.

I am live-streaming on Twitch then uploading to YouTube, and can add a Codebuddies tag to the uploads.

That sounds great, thanks! I'm not entirely sure how to search on Twitch by tag -- e.g. if I type "codebuddies" here it only brings up my videos from twitch.tv/codebuddies, not yours that you've tagged #codebuddies.

Let me know if there are other features you'd like me to make use of -- e.g. adding you as a collaborator on Twitch, or "raiding" your channel, etc. I'm still new to Twitch features.

[BethanyG]

Some additional links:

Postgres in Docker: https://hackernoon.com/dont-install-postgres-docker-pull-postgres-bee20e200198

Postgres How-Tos: http://postgresguide.com/setup/install.html

[BethanyG]

again, attempting to consolodate setup issues in one place. Please see issue #3