diff --git a/README.md b/README.md
index b62f01a1..d7e3d418 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,9 @@
         <a href='https://lightrag.github.io'><img src='https://img.shields.io/badge/Project-Page-Green'></a>
         <a href='https://youtu.be/oageL-1I0GE'><img src='https://badges.aleen42.com/src/youtube.svg'></a>
         <a href='https://arxiv.org/abs/2410.05779'><img src='https://img.shields.io/badge/arXiv-2410.05779-b31b1b'></a>
+        <a href='https://learnopencv.com/lightrag'><img src='https://img.shields.io/badge/LearnOpenCV-blue'></a>
         <a href='https://discord.gg/E4HgTnck'><img src='https://discordapp.com/api/guilds/1296348098003734629/widget.png?style=shield'></a>
+        <a href='https://github.com/HKUDS/LightRAG/issues/285'><img src='https://img.shields.io/badge/群聊-wechat-green'></a>
     </p>
      <p>
           <img src='https://img.shields.io/github/stars/hkuds/lightrag?color=green&style=social' />
@@ -35,8 +37,10 @@ This repository hosts the code of LightRAG. The structure of this code is based
 
 ## Algorithm Flowchart
 
-![LightRAG_Self excalidraw](https://github.com/user-attachments/assets/aa5c4892-2e44-49e6-a116-2403ed80a1a3)
-
+![LightRAG Indexing Flowchart](https://learnopencv.com/wp-content/uploads/2024/11/LightRAG-VectorDB-Json-KV-Store-Indexing-Flowchart-scaled.jpg)
+*Figure 1: LightRAG Indexing Flowchart*
+![LightRAG Retrieval and Querying Flowchart](https://learnopencv.com/wp-content/uploads/2024/11/LightRAG-Querying-Flowchart-Dual-Level-Retrieval-Generation-Knowledge-Graphs-scaled.jpg)
+*Figure 2: LightRAG Retrieval and Querying Flowchart*
 
 ## Install
 
diff --git a/lightrag/kg/neo4j_impl.py b/lightrag/kg/neo4j_impl.py
index 32bfbe2e..f9fcb46d 100644
--- a/lightrag/kg/neo4j_impl.py
+++ b/lightrag/kg/neo4j_impl.py
@@ -214,7 +214,7 @@ class Neo4JStorage(BaseGraphStorage):
                 neo4jExceptions.ServiceUnavailable,
                 neo4jExceptions.TransientError,
                 neo4jExceptions.WriteServiceUnavailable,
-                neo4jExceptions.ClientError
+                neo4jExceptions.ClientError,
             )
         ),
     )
diff --git a/lightrag/lightrag.py b/lightrag/lightrag.py
index ce27e76d..7fafadcf 100644
--- a/lightrag/lightrag.py
+++ b/lightrag/lightrag.py
@@ -173,8 +173,7 @@ class LightRAG:
             embedding_func=self.embedding_func,
         )
         self.chunk_entity_relation_graph = self.graph_storage_cls(
-            namespace="chunk_entity_relation",
-            global_config=asdict(self)
+            namespace="chunk_entity_relation", global_config=asdict(self)
         )
         ####
         # add embedding func by walter over