Create Content Property

Creates a property for an existing piece of content. For more informationabout content properties, see [Confluence entity properties](https://developer.atlassian.com/cloud/confluence/confluence-entity-properties/).This is the same as [Create content property for key](#api-content-id-property-key-post)except that the key is specified in the request body instead of as apath parameter.Content properties can also be added when creating a new piece of contentby incl...