diff --git a/doc/synology/images/deploy.png b/doc/synology/images/deploy.png
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index 000000000..dab6909aa
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diff --git a/doc/synology/index.md b/doc/synology/index.md
index d6161952a..bd0becc58 100644
--- a/doc/synology/index.md
+++ b/doc/synology/index.md
@@ -35,6 +35,7 @@
 
 ## 1. 前提条件
 * 已经部署了certd
-* 群晖上已经设置好了证书
+* 群晖上已经设置好了证书(证书建议设置好描述，插件需要根据描述查找证书)
 
-## 2. 在certd上配置自动更新群晖证书插件
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+## 2. 在certd上配置自动更新群晖证书插件
+![](./images/deploy.png)
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