Update config.json

Line 11, '"max_length": 4096' was missing a comma.

config.json

@@ -8,7 +8,7 @@
     "hidden_size": 8192,
     "initializer_range": 0.02,
     "intermediate_size": 28672,
-    "max_length": 4096
+    "max_length": 4096,
     "max_position_embeddings": 2048,
     "model_type": "llama",
     "num_attention_heads": 64,