update

README.md

@@ -21,7 +21,7 @@ At that time, the api will be stable, and backward compatible will be promised.
 - **0.1 API Skeleton** :white_check_mark:
 - **0.2 Transaction** transaction support :white_check_mark:
 - **0.3 Static Template** static tempalte sql and tracing  :white_check_mark:
-- **0.4 Relationship**: support relationship :hammer:
+- **0.4 Relationship**: support relationship :hammer: (I'm working hard on this, and finally maybe something like the core part of GraphQL)
 - **0.5 Dynamic Template**: support dynamic template :pushpin:
 - **0.6 Error**: :pushpin:
 - **0.7 Performance**: benchmark and optimize :pushpin: