Required properties should be array on parent not boolean on children

[alexanderhawley]

In the example in the readme for this project, it appears as though the required properties are specified in the JSON schema by a required boolean property on each and every property which is required.

{
  "type": "object",
  "properties": {
    "name":      { "type": "string", "required": true },
    "email":     { "type": "string", "required": true },
    "address":   { "type": "string" },
    "telephone": { "type": "string" }
  }
}

However, the JSON schema specification indicates required properties are specified in the JSON schema by a required array on the parent that includes all child properties which are required.

https://spacetelescope.github.io/understanding-json-schema/reference/object.html?#required-properties

{
  "type": "object",
  "properties": {
    "name":      { "type": "string" },
    "email":     { "type": "string" },
    "address":   { "type": "string" },
    "telephone": { "type": "string" }
  },
  "required": ["name", "email"]
}

Please correct me if this is a mistake. Maybe this is a difference with previous versions of the JSON Schema specification?