!include with multiple yaml files results in SAFE MODE ERROR

Hi everyone, sorry to trouble you all

I’ve got a bit of an issue when trying to include multiple yaml files in my configuration

group:
    !include
            groups.yaml
            my_groups.yaml

groups.yaml I believe has been created by deCONZ and my_groups.yaml was created by me downloading groups.yaml renaming it to my_groups.yaml and uploading it.

groups.yaml is empty and my_groups.yaml contains:

# Everyone
  everyone:
    name: Everyone
    entities:
      - person.will
      - person.jade

When rebooted HA goes into Safe Mode with the following in the error log

2020-11-21 11:41:53 ERROR (MainThread) [homeassistant.bootstrap] Failed to parse configuration.yaml: in “/config/configuration.yaml”, line 10, column 5: Unable to read file /config/groups.yaml my_groups.yaml… Activating safe mode

I have no idea what I’ve done wrong if anyone could offer any assistance?
#ThanksInAdvance

That’s not how you include multiple files. Please see the documentation for ‘splitting up configuration’.

Yeah, I couldn’t figure that one out either. I just smashed it into the groups.yaml. Hopefully it won’t cause any bother when I start setting up groups in deCONZ