Develop task

[MaksimHolubeu]

1.  task check
{
  courses(filters: {published: true})
  {
    id
    published
    title
  }
}

2. task check
{
  collections {
    id
    title
    courses {
      id
    }
  }
}

3. task check
{
  includes(collection: 1, course: 13)
}

4. task check
{
  courses(filters: {published: true})
  {
    id
    published
    title
    discount
  }
}

5. task check
mutation {
createCourse(input: {title: "The Test",
  description: "desc",
  published: true, collections: [5,6]}) {
    id
    title
    description
    published
    discount
}
}