Update README.md

[christianboyle]

I was setting this up with Synology Container Manager + docker-compose.yml seemed like it wasn't working due to some networking issue.

Like a buffoon, I didn't realize that the labels: are required and that's why I was seeing No containers found in the widget display.

I think maybe the project README.md could be made more clear by:

• Stating the label is required and having the included example use the assumed existence of a Glance container/project, rather than Sonar, since it's a more obvious example
• Add a commented out line at the bottom of the docker-compose.yml example in the instructions, like # labels: [...], so that users realize there's more required fields
• Remove the glance.X.group from the included example to simplify things to the minimum needed to work with a single container (this removes the need to update glance.yml with the group, which should avoid issues like #4

[DVDAndroid]

Thanks for contribution; I have some doubts on these changes.

I've tried to write the docs the more generic possible

[DVDAndroid]

Yeah, configuration is required if you want to make widget appear in the homepage; in fact the sentence below declares that "for every container you want to monitor" you need to add some labels.

I'll pass on this

[DVDAndroid]

I think it's not the right example to add.
Nobody will have a widget pointing to glance itself; also this may result confusing for users; they may ask theirself: should I put this on glance container?

I put Sonarr as example to say "your container XYZ". A more generic widget should be provided as example.
What a good example could be? I declare all available properties below, so an example like this

glance.X.name: <name of the container>

isn't quite right

[christianboyle]

Yea, I can see how this might be more confusing. Thanks for explaining your thinking behind the Sonarr example.