Adding that bracket of `NLLB_EXAMPLE` dictionary as examples in comment

nllb.py

@@ -55,7 +55,5 @@ def translation(model_name: str, source, target, text: str):
         "Shan",
         "Forming Myanmar’s New Political System Will Remain an Ideal but Never in Practicality",
     ],
-    
-    '''
-
 ]
+'''