Tutorials - Data Modeling

[evantypanski]

Add the tutorial data model. This also includes any directly dependent data models that would be required.

A tutorial must have:

• title
• body
• created_at

The following might be added with discussion:

• tags
• split body into sections, such as tools needed and steps
• an author (much like a project in the current system, how it is optional)
• a level, from beginner to expert. See python's enum for details -> can associate "beginner" with 0, "intermediate" with 1, and "expert" with 2, for example.