diff --git a/README.md b/README.md
index 1b914c5..c5068b1 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ Then you can run `collection.num_entities` to check the number of the data in Mi
 
 ### **EnhancedQAInsertConfig**
 
-***Configuration for [Text Loader](https://towhee.io/towhee/text-loader)***
+**Configuration for [Text Loader](https://towhee.io/towhee/text-loader):**
 
 ***chunk_size: int***
 The size of each chunk, defaults to 300.
@@ -77,7 +77,7 @@ The size of each chunk, defaults to 300.
 ***source_type: str***
 The type of the soure, defaults to `'file'`, you can also set to `'url'` for you url of your documentation. 
 
-***Configuration for Sentence Embedding***
+**Configuration for Sentence Embedding:**
 
 ***model: str***
 The model name in the sentence embedding pipeline, defaults to `'all-MiniLM-L6-v2'`.
@@ -97,7 +97,7 @@ Whether to normalize the embedding vectors, defaults to `True`.
 The number of devices, defaults to `-1`, which means using the CPU. 
 If the setting is not `-1`, the specified GPU device will be used.
 
-***Configuration for [Milvus](https://towhee.io/ann-insert/milvus-client)***
+**Configuration for [Milvus](https://towhee.io/ann-insert/milvus-client):**
 
 ***host: str***
 Host of Milvus vector database, default is `'127.0.0.1'`.