Fix config.json

Now the config points to the rights arch which should correctly init from cloud

config.json

@@ -1,15 +1,17 @@
 {
   "activation_function": "gelu",
-  "architectures": [
-    "CustomGPT2LMHeadModel"
-  ],
+  "auto_map": {
+    "AutoConfig": "modeling_gpt3dev.GPT3DevConfig",
+    "AutoModel": "modeling_gpt3dev.GPT3DevModel",
+    "AutoModelForCausalLM": "modeling_gpt3dev.GPT3DevLMHeadModel"
+  },
   "attn_pdrop": 0.0,
   "bos_token_id": 50256,
   "embd_pdrop": 0.0,
   "eos_token_id": 50256,
   "initializer_range": 0.02,
   "layer_norm_epsilon": 1e-05,
-  "model_type": "gpt2",
+  "model_type": "gpt3dev",
   "n_ctx": 2048,
   "n_embd": 768,
   "n_head": 12,