Missing configuration options for camera view (#13545)

source/_lovelace/picture-elements.markdown

@@ -19,9 +19,18 @@ type:
   description: picture-elements
   type: string
 image:
-  required: true
+  required: false
   description: The URL of an image.<br/>To use a locally hosted image, see [Hosting](/integrations/http#hosting-files).
   type: string
+camera_image:
+  required: false
+  description: A camera entity.
+  type: string
+camera_view:
+  required: false
+  description: '"live" will show the live view if `stream` is enabled.'
+  default: auto
+  type: string
 elements:
   required: true
   description: List of elements