LGTM-2 Read from database

Squashed commit of the following:

commit a2a2b553f69a66f1825347abde4f0028773bdbdb
Author: Ben Beltran <ben@nsovocal.com>
Date:   Mon Nov 28 02:27:19 2016 -0600

    Fetch random record in record_fetcher

commit 6b98202fc8ea9c5811134cad592f11b6b89d008a
Author: Ben Beltran <ben@nsovocal.com>
Date:   Mon Nov 28 02:27:08 2016 -0600

    Add some instructions to the readme

commit f5efb2b5de23844e6317a6f636abb75955e60c40
Author: Ben Beltran <ben@nsovocal.com>
Date:   Mon Nov 28 02:26:57 2016 -0600

    Add DB setup script

commit d6d8813ef55bb1297089c9dbb87a9ab86e6c5ba2
Author: Ben Beltran <ben@nsovocal.com>
Date:   Mon Nov 28 02:26:34 2016 -0600

    Add dotenv to the configs

commit 649f66982d2152d36a782577043505835f235987
Author: Ben Beltran <ben@nsovocal.com>
Date:   Mon Nov 28 01:29:49 2016 -0600

    Use a template instead of static html index

1 files changed, 23 insertions, 0 deletions

diff --git a/README.md b/README.md
index 3f1f2aa..40a517b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,25 @@
 # lgtm
 looks good to me
+
+## What you'll need
+
+You should have node and a mysql database where we can create and read a table.
+
+## Configuring the app
+
+The app is configured using environment variables. You can check
+`config/config.js` to see the expected keys. Most values are optional and
+the defaults should work fine, you will have to provide three values for
+the database connection as no defaults are provided:
+
+* `LGTM_MYSQL_USER`
+* `LGTM_MYSQL_PASSWORD`
+* `LGTM_MYSQL_DATABASE`
+
+An easy way to configure this app for local development is by using a `.env`
+file in the project root. An example one is provided in `env.dist`, you can
+copy that file and update with your own defaults.
+
+## Setting Up the Database
+
+Run `npm run setup_database`. This will create the table.