Overhaul setup method and tutorials

[samithShetty]

The goal of this bot is to be available and accessible to any student using Canvas in any part of the world. You shouldn't need to be a Computer Science Major to be able to set it up.

Currently, the setup for the bot is tedious and the tutorial in the README relies users to watch other tutorials and go through the arduous process of learning to host a bot on Heroku. This requires users to download several pieces of software, perform configurations from the command-line, is very time consuming and provides a lot of opportunities for things to go wrong. This creates a rather high barrier to entry for using the bot.

To meet this goal, there are a few things that need to be changed in the tutorial process:

• No terminal/Command-line work
• No Downloads
• No need to modify code
• Integrated Database (See Migrate Database to Heroku Postgres #3)

[samithShetty]

Heroku shutting down free tier, will no longer be the recommended option for Canvas Bot, see #8 for more info.

This will change the setup greatly, as it will no longer be the established hosting method nor will it be host for the Database. Hosting option will be left up to the individual, but the tutorial should still provide an example and cover the setup of hosting and linking your database.