update deepfm readme doc format error

official/recommend/deepfm/README.md

@@ -56,16 +56,16 @@ After installing MindSpore via the official website, you can start training and
 
 - preprocess dataset
 
-  '''bash
+  ```bash
   #download dataset
-  #Please refer to [1] to obtain the download link
+  #Please refer to [Criteo Kaggle Display Advertising Challenge Dataset] to get the download URL and assign it to `DATA_LINK`
   mkdir -p data/origin_data && cd data/origin_data
   wget DATA_LINK
   tar -zxvf dac.tar.gz
 
   #preprocess dataset
   python -m src.preprocess_data  --data_path=./data/ --dense_dim=13 --slot_dim=26 --threshold=100 --train_line_count=45840617 --skip_id_convert=0
-  '''
+  ```
 
 - running on Ascend
 

official/recommend/deepfm/README_CN.md

@@ -59,16 +59,17 @@ FM和深度学习部分拥有相同的输入原样特征向量，让DeepFM能从
 通过官方网站安装MindSpore后，您可以按照如下步骤进行训练和评估：
 
 - 数据集预处理
-  '''bash
+
+  ```bash
   #下载数据集
-  #请参考[1]获得下载链接
+  #请参考[Criteo Kaggle Display Advertising Challenge Dataset]获得下载链接并赋值给`DATA_LINK`
   mkdir -p data/origin_data && cd data/origin_data
   wget DATA_LINK
   tar -zxvf dac.tar.gz
 
-  #数据集预处理脚步执行
+  #数据集预处理脚本执行
   python -m src.preprocess_data  --data_path=./data/ --dense_dim=13 --slot_dim=26 --threshold=100 --train_line_count=45840617 --skip_id_convert=0
-  '''
+  ```
 
 - Ascend处理器环境运行