diff --git a/README.md b/README.md
index 36a9310..2c9acd4 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,10 @@
 
 ## 实现原理
 
-基于tls链接，server端转发流量
+基于tls链接，protobuf进行数据传输，下面举例在办公网络穿透到家庭网络，
+并通过rdp进行连接家庭网络下的某台windows设备
+
+![rdp](docs/example.jpg)
 
 ## 编译
 
diff --git a/docs/flow.drawio b/docs/flow.drawio
deleted file mode 100644
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--- a/docs/flow.drawio
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@@ -1 +0,0 @@
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