fix english docs (#3312)

docs/pipeline_usage/tutorials/time_series_pipelines/time_series_anomaly_detection.en.md

@@ -813,7 +813,7 @@ SubModules:
   TSAnomalyDetection:
     module_name: ts_anomaly_detection
     model_name: DLinear_ad
-    model_dir: null  # 此处替换为您训练后得到的模型权重本地路径
+    model_dir: null  # Can be modified to the local path of the fine-tuned model
     batch_size: 1
 ```
 

docs/pipeline_usage/tutorials/time_series_pipelines/time_series_classification.en.md

@@ -745,7 +745,7 @@ SubModules:
   TSClassification:
     module_name: ts_classification
     model_name: TimesNet_cls
-    model_dir: null  # 此处替换为您训练后得到的模型权重本地路径
+    model_dir: null  # Can be modified to the local path of the fine-tuned model
     batch_size: 1
 ```
 

docs/pipeline_usage/tutorials/time_series_pipelines/time_series_forecasting.en.md

@@ -842,7 +842,7 @@ SubModules:
   TSForecast:
     module_name: ts_forecast
     model_name: DLinear
-    model_dir: null # 此处替换为您训练后得到的模型权重本地路径
+    model_dir: null # Can be modified to the local path of the fine-tuned model
     batch_size: 1
 ```