fix train bugs and add train details

config/zh_rap_lora_config.json

@@ -0,0 +1,15 @@
+{
+    "r": 256,
+    "lora_alpha": 32,
+    "target_modules": [
+        "speaker_embedder",
+        "linear_q",
+        "linear_k",
+        "linear_v",
+        "to_q",
+        "to_k",
+        "to_v",
+        "to_out.0"
+    ],
+    "use_rslora": true
+}