Update config.json

Refactor: Remove `_name_or_path` and increase `max_position_embeddings` to 8192

- Removed the `_name_or_path` parameter as it's no longer necessary.
- Updated `max_position_embeddings` from 2048 to 8192 for better model capacity.

config.json

@@ -1,5 +1,4 @@
 {
-  "_name_or_path": "./models/llama3-8b_sft_full_1e-5_bs8000_3_trainv59_a/checkpoint-1596",
   "architectures": [
     "LlamaForCausalLM"
   ],
@@ -11,7 +10,7 @@
   "hidden_size": 4096,
   "initializer_range": 0.02,
   "intermediate_size": 14336,
-  "max_position_embeddings": 2048,
+  "max_position_embeddings": 4096,
   "model_type": "llama",
   "num_attention_heads": 32,
   "num_hidden_layers": 32,