Update README.md

README.md

@@ -15,6 +15,32 @@ graph TD;
     
 ``` 
 
+```mermaid
+sequenceDiagram;
+    participant adm as TMS UI/Browser;
+    participant tms as TMS service;
+    participant oss as OSS service;
+	
+
+	
+	activate adm;
+	adm->>adm:click "Add APP";
+	adm-)oss:upload apk;
+	oss-->>adm:ok;
+    adm->>tms:submit "Add APP";
+    activate tms;
+    tms->>oss:get apk;
+    oss-->>tms:apk;
+    activate tms;
+    tms->>tms:sign the apk;
+    deactivate tms;
+    
+    tms-->>adm:ok;
+    deactivate tms;
+    
+    deactivate adm;
+```
+
 
 ```mermaid
 erDiagram;