[TYPO] Name resolution Consul - Malformed yaml in sample configs

**URL of the docs page**
https://docs.dapr.io/reference/components-reference/supported-name-resolution/setup-nr-consul/

**How is it currently worded?**
The yaml is malformed on the page, look for `interval: "15s",`

**How should it be worded?**
There should be no commas in the yaml, there are three instances of this
