valid 3.0.0 spec

limoncello.yaml

openapi: 3.0.0
info: 
  version: 1.0.0
  title: Limoncello 3.0.0
paths: 
  /limoncello:
    get: 
      summary: Update a limoncello
      requestBody:
        description: Request type of limoncello
        content:
          application/json:
            schema:
              type: object
      responses:
        200:
          description: I'll respond with a
          content:
              text/plain:
                schema:
                  type: string
                  example: "Limoncello!"