Update `config.json` with correct `pad_token_id`

Tokenizer's `pad_token_id` is 0. However, the `config.json`'s `pad_token_id` is -1.

config.json

@@ -3,8 +3,8 @@
   "architectures": [
     "LlamaForCausalLM"
   ],
-  "bos_token_id": 0,
-  "eos_token_id": 1,
+  "bos_token_id": 1,
+  "eos_token_id": 2,
   "hidden_act": "silu",
   "hidden_size": 4096,
   "initializer_range": 0.02,
@@ -13,7 +13,7 @@
   "model_type": "llama",
   "num_attention_heads": 32,
   "num_hidden_layers": 32,
-  "pad_token_id": -1,
+  "pad_token_id": 0,
   "rms_norm_eps": 1e-06,
   "tie_word_embeddings": false,
   "torch_dtype": "float32",