diff --git a/samples/demo01.md b/samples/demo01.md
index 7e64908..790b871 100644
--- a/samples/demo01.md
+++ b/samples/demo01.md
@@ -4,7 +4,7 @@ puppeteer:
   format: "A4"
   timeout: 3000
 export_on_save:
-    puppeteer: true
+  puppeteer: true
 ---
 
 [TOC]
@@ -71,10 +71,13 @@ export_on_save:
 ```
 # 时序图-相对路径2
 
-```plantuml
+```plantuml ｛align="center"}
 @startuml
 !include ../puml/core.puml
 
+scale max 800 width
+scale max 800 height
+
 用户 -> 认证中心: 登录操作2
 认证中心 -> 缓存: 存放(key=token+ip,value=token)token
 
diff --git a/samples/demo02.md b/samples/demo02.md
index 266bd38..c8e68c4 100644
--- a/samples/demo02.md
+++ b/samples/demo02.md
@@ -1,8 +1,10 @@
 ---
 puppeteer:
-landscape: false format: "A4"
-timeout: 3000 export_on_save:
-puppeteer: true
+  landscape: false
+  format: "A4"
+  timeout: 3000
+export_on_save:
+  puppeteer: true
 ---
 
 # 时序图