Update config.json

config.json

@@ -17,6 +17,7 @@
         "code_normalization": "MIXED",
         "code_normalization_alpha_sae": 0.7,
         "code_normalization_alpha_cc": 0.3,
-        "target_rms": 1.0
+        "target_rms": 1.0,
+        "num_layers": 2
     }
 }