From `create-policy`:
```
 * tags
  - The array of names of tags that are used for matching nodes to this policy.
    
    When a node has all these tags matched on it, it will be a candidate
    for binding to this policy.
  - It must be of type array.
    - All elements must be of type string.
    - All elements must match the name of an existing tag.
```

The above is what I was aiming for, which is why this uses two lines. I feel it lines up better with the preceding `- $text` lines. If there's a larger design consideration I missed here, let me know and I'll switch it back.