title: Heading
'@id': stencila:Heading
extends: Entity
role: secondary
status: stable
category: prose
description: Heading
properties:
  depth:
    '@id': stencila:depth
    description: The depth of the heading.
    type: number
    minimum: 1
    maximum: 6
  content:
    '@id': stencila:content
    description: Content of the heading.
    type: array
    items:
      $ref: InlineContent
required:
  - depth
  - content

title: Heading
'@id': stencila:Heading
extends: Entity
role: secondary
status: stable
category: prose
description: Heading
properties:
  depth:
    '@id': stencila:depth
    description: The depth of the heading.
    type: number
    default: 1
    minimum: 1
    maximum: 6
  content:
    '@id': stencila:content
    description: Content of the heading.
    type: array
    items:
      $ref: InlineContent
required:
  - content

Make depth optional, defaulting to 1
fix(Heading): Make depth optional, defaulting to 1