update docs

Author: wu-clan

docs/README.md

@@ -20,6 +20,9 @@ config:
         - theme: sponsor
           text: 在线体验
           link: https://fba.wu-clan.site/
+        - theme: alt
+          text: 伪三层架构?
+          link: /backend/summary/intro#伪三层架构
         - theme: alt
           text: 为什么选择我们?
           link: /backend/summary/why