## Courses Model

Each Course MUST have:

- one Identifier _(unique, URL-safe, path-safe)_
- one Title
- one Content
- one Topic
- one Language `ISO 639-1` (two letter code, eg: `fr`)

Each course MAY have

- one or more Courses as dependencies
- one or more Tags


## TODO

- Look up https://schema.org/Course and comply somehow