Add credible content model

[slifty]

The credible content model is going to store... credible content!
Baiscally, this will hold scraped text from publications that we want to
apply truth goggles to.

This is the very first schema and model we've tried to make.

Issue #27 Scrape The Facts

[knowtheory]

Hey so i just caught this after i inspected the database after doing a sequelize db:migrate (thanks @crupar for the instructions on how to do this), but @slifty why are the models in the database upper cased rather than snake cased? Is there a convention you prefer here? Cause generally speaking using upper case table names means that you will always have to quote them if querying in SQL:

truthgoggles_development=# select * from "SequelizeMeta";
                   name                    
-------------------------------------------
 20180927153818-create-credible-content.js
(1 row)

truthgoggles_development=# select * from SequelizeMeta;
ERROR:  relation "sequelizemeta" does not exist
LINE 1: select * from SequelizeMeta;
                      ^