Docs batched updates unclear

[louwers]

Tell us more.

This is what the docs instruct on batched updates:

You can configure batched updates by setting a groupName as part of packageRules.

I have no idea what a packageRules is. An example would be very helpful here!

[louwers]

I guess like this:

{
  "enabledManagers": ["gradle-wrapper", "bazel", "bazel-module", "bazelisk"],
  "packageRules": [
    {
      "matchManagers": ["bazel", "bazel-module", "bazelisk"],
      "groupName": "bazel"
    }
  ]
}

[RahulGautamSingh]

PR welcome