docs: Improve code documentation

doc/README_app_en.md

@@ -1,27 +1,61 @@
 # APP Doc
 
+## Run docker
+
+```bash
+docker run -it -p 8000:8000 -p 8001:8001 -p 8002:8002 -v ~/mimajingsai:/app -e HOST_IP=110.41.130.197 git.mamahaha.work/sangge/tpre:base bash  
+```
+
+```bash
+tpre3: docker run -it -p 8000:8000 -p 8001:8001 -p 8002:8002 -v ~/mimajingsai:/app -e HOST_IP=60.204.233.103 git.mamahaha.work/sangge/tpre:base bash
+```
+
+## Cloud server ip
+
+**tpre1**: 110.41.155.96  
+**tpre2**: 110.41.130.197  
+**tpre3**: 110.41.21.35  
+
+## Agent re-encryption process
+
+### Client request message
+
+```bash
+python client_cli.py 110.41.21.35 aaa
+```
+
 ## Client router
 
-/request_node
-get method
-  
+**/receive_messages**  
+post method
 
+**/request_message**  
+post method
 
-docker run -it -p 8000:8000 -p 8001:8001 -p 8002:8002 -v ~/mimajingsai:/app -e HOST_IP=110.41.130.197 git.mamahaha.work/sangge/tpre:base bash  
+**/receive_request**  
+post method
 
+**/recieve_pk**  
+post method  
 
-tpre3: docker run -it -p 8000:8000 -p 8001:8001 -p 8002:8002 -v ~/mimajingsai:/app -e HOST_IP=60.204.233.103 git.mamahaha.work/sangge/tpre:base bash
+## Central server router
 
+**/server/show_nodes**  
+get method  
 
-110.41.155.96 tpre1  
-110.41.130.197 tpre2  
-110.41.21.35 tpre3
+**/server/get_node**  
+get method  
 
-python client_cli.py 110.41.21.35 aaa
+**/server/delete_node**  
+get method  
 
+**/server/heartbeat**  
+get method  
 
-apt update && apt install docker.io mosh -y
+**/server/send_nodes_list**  
+get method  
 
-60.204.236.38 tpre1
-1.94.42.18 tpre2
-60.204.233.103 tpre3
+## Node router
+
+**/user_src**  
+post method