doc/readme.md
## Database tables relation
![db schema](db-schema.png "db schema")
## Postman examples
### `POST` Create Audio
![db postman](create-audio.png "db postman")
### `POST` Create H5P Content
![db postman](create-h5p.png "db postman")
### `POST` Create Image
![db postman](create-image.png "db postman")
### `POST` Create RichText
![db postman](create-richtext.png "db postman")
### `POST` Create Video
![db postman](create-video.png "db postman")
### `PUT` Update Content
![db postman](update-content.png "db postman")