Update tokenizer_config.json

tokenizer_config.json

@@ -14,5 +14,8 @@
     "mask_token": "<MASK>"
   },
   "tokenization_method": "Byte Pair Encoding (BPE)",
-  "training_data": "Custom 1500 Example Dataset"
-}
+  "training_data": "Custom 1500 Example Dataset",
+  "chat_template": "[BOS] {context} {user_input} {response} [EOS]",
+  "pad_to_max_length": true,
+  "truncation_strategy": "only_second"
+}