Add example without style and position

Author: csouchet

R/bpmnVisualizationR.R

@@ -67,7 +67,8 @@
 #'   bpmnVisualizationR::create_overlay("start_event_1_1", "42", position = "middle-left"),
 #'   bpmnVisualizationR::create_overlay("sequence_flow_1_1", "42", flowStyle, "end"),
 #'   bpmnVisualizationR::create_overlay("task_1_1", "9", taskStyle, "bottom-right"),
-#'   bpmnVisualizationR::create_overlay("sequence_flow_1_2", "8",  position = 'start')
+#'   bpmnVisualizationR::create_overlay("sequence_flow_1_2", "8",  position = 'start'),
+#'   bpmnVisualizationR::create_overlay("call_activity_1_1", "7")
 #' )
 #' bpmnVisualizationR::display(
 #'   bpmn_file,