Update README

lightrag/api/README-zh.md

@@ -316,10 +316,11 @@ MongoKVStorage   MogonDB
 ```
 NetworkXStorage      NetworkX(默认)
 Neo4JStorage         Neo4J
-PGGraphStorage       Postgres
-AGEStorage           AGE
+PGGraphStorage       PostgreSQL with AGE plugin
 ```
 
+> 在测试中Neo4j图形数据库相比PostgreSQL AGE有更好的性能表现。
+
 * VECTOR_STORAGE 支持的实现名称
 
 ```

lightrag/api/README.md

@@ -319,10 +319,11 @@ MongoKVStorage   MongoDB
 ```
 NetworkXStorage      NetworkX (default)
 Neo4JStorage         Neo4J
-PGGraphStorage       Postgres
-AGEStorage           AGE
+PGGraphStorage       PostgreSQL with AGE plugin
 ```
 
+> Testing has shown that Neo4J delivers superior performance in production environments compared to PostgreSQL with AGE plugin.
+
 *   VECTOR_STORAGE supported implementations:
 
 ```