Docker.github.io: Additional property {property} is not allowed

[AlexOQ]

File: get-started/part3.md, CC @johndmulhausen
When following the example to the letter, receiving the aforementioned error when running docker stack deploy command

Env. details: Latest docker + docker-compose as of this writing, Ubuntu Server 16.04 LTS. Not root, 'sudo' everywhere.

Thanks in advance.

[joaofnfernandes]

Instead of an image, can you paste here your getstartedlab file?
Check here how to paste code blocks

[guk727]

@AlexOQ You should set an empty line before services and networks like this:

[johndmulhausen]

I think the docs are fine here, so closing this. Hope the comments were helpful in debugging the issue for you. :)

[pkvsinha]

Check indentation. In the original screenshot, ports and networks property are defined under deploy. They should be properties under web