diff --git a/README.md b/README.md
index 7f2c417..f16ab45 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,42 @@
 # mitmrouter
 Bash script to automate setup of Linux router useful for IoT device traffic analysis and SSL mitm
 
-![Arch](./img/arch.jpg)
+```mermaid
+flowchart LR
+    iot1["Wifi IoT Device"]:::iotDevice
+    iot2["Wired IoT Device"]:::iotDevice
+    wifi["Wi-Fi Interface(hostapd)"]
+    eth["Ethernet Interface"]
+    br0["br0"]
+    dnsmasq["dnsmasq(dhcp server)"]
+    iptables["iptables rules"]
+    mitm["mitmproxy(ssl proxy tool)"]
+    wan["wan"]
+    ethif["Ethernet Interface"]
+    
+    subgraph Linux_Router[MITM Router]
+        style Linux_Router fill:#005500
+        br0
+        dnsmasq
+        iptables
+        mitm:::mitm
+        wan
+    end
+    
+    iot1 <--> wifi
+    iot2 <--> eth
+    wifi <---> br0
+    eth <---> br0
+    br0 <---> dnsmasq
+    br0 <--> iptables
+    iptables <--> wan
+    iptables --> mitm
+    wan <--> ethif
+
+    classDef iotDevice fill:#9999ff
+    classDef mitm fill:#ffdddd,color:#000
+```
+
 
 ## Dependancies