add ckpt id into config

config.json

@@ -1,5 +1,5 @@
 {
-  "_name_or_path": "LLM360/K2",
+  "_name_or_path": "llm360/k2_ckpt_354",
   "architectures": [
     "LlamaForCausalLM"
   ],
@@ -27,4 +27,4 @@
   "transformers_version": "4.39.3",
   "use_cache": true,
   "vocab_size": 32032
-}
+}