docs: update README.md

README.md

@@ -53,6 +53,7 @@ graph TD;
     agw-->kafka-log
     kafka-log-->ods
     kafka-log-->zookeeper
+    kafka-manager-->zookeeper
 ```
 
 ## Generate code

apps/agw/README.md

@@ -0,0 +1,5 @@
+# Kubsu IT Lab Platform: ApiGateway
+
+## Structure
+- GraphQL
+- Kafka