update support the gitea

samples/demo01.md

@@ -37,7 +37,7 @@ export_on_save:
 @enduml
 ```
 # 时序图1
-```uml
+```plantuml
 @startuml
 
 !include https://deep-tek.com/puml/core.puml
@@ -57,7 +57,8 @@ export_on_save:
 
 ```plantuml
 @startuml
-!include ./core.puml
+' !include ./core.puml
+!include https://deep-tek.com/puml/core.puml
 
 用户 -> 认证中心: 登录操作1
 认证中心 -> 缓存: 存放(key=token+ip,value=token)token
@@ -71,9 +72,10 @@ export_on_save:
 ```
 # 时序图-相对路径2
 
-```plantuml ｛align="center"}
+```plantuml
 @startuml
-!include ../puml/core.puml
+' !include ../puml/core.puml
+!include https://deep-tek.com/puml/core.puml
 
 scale max 800 width
 scale max 800 height
@@ -98,7 +100,9 @@ scale max 800 height
 
 ```plantuml
 @startuml
-!include https://deep-tek.com/puml/cerulean/puml-theme-cerulean.puml
+' !include https://deep-tek.com/puml/cerulean/puml-theme-cerulean.puml
+' help themes
+!theme bluegray
 
 participant participant as Foo
 actor       actor       as Foo1