Update the example_node.py.example with RETURN_NAMES.

custom_nodes/example_node.py.example

@@ -11,6 +11,8 @@ class Example:
     ----------
     RETURN_TYPES (`tuple`): 
         The type of each element in the output tulple.
+    RETURN_NAMES (`tuple`):
+        Optional: The name of each output in the output tulple.
     FUNCTION (`str`):
         The name of the entry-point method. For example, if `FUNCTION = "execute"` then it will run Example().execute()
     OUTPUT_NODE ([`bool`]):
@@ -61,6 +63,8 @@ class Example:
         }
 
     RETURN_TYPES = ("IMAGE",)
+    #RETURN_NAMES = ("image_output_name",)
+
     FUNCTION = "test"
 
     #OUTPUT_NODE = False