Prisma

If I change the hostname to `host.docker.internal` then the error message is
```
Creating stage default for service default... !
 !    'ENOTFOUND': request to <http://host.docker.internal:4466/management>
 !    failed, reason: getaddrinfo ENOTFOUND host.docker.internal
 !    host.docker.internal:4466
```

After searching a lot on the web I found the solution!! Thanks to this answer: <https://stackoverflow.com/a/52444407/381378>

I had to change `endpoint` value of `prisma.yml` to `<http://192.168.99.100:4466>`, which is the VirtualBox default IP.

Prisma documentation is faulty on this point. It should warning that when using Docker Toolbox on Windows we should use this address to run the tutorial.