Update docs for Content type update method

Author: uttamukkoji

lib/stack/contentType/index.js

@@ -26,7 +26,8 @@ export function ContentType (http, data = {}) {
     Object.assign(this, cloneDeep(data.content_type))
     this.urlPath = `/content_types/${this.uid}`
     /**
-     * @description The Update ContentType call lets you update the name and description of an existing ContentType.
+     * @description The Update ContentType call lets you update the name and description of an existing ContentType. 
+     * You can also update the JSON schema of a content type, including fields and different features associated with the content type.
      * @memberof ContentType
      * @func update
      * @returns {Promise<ContentType.ContentType>} Promise for ContentType instance