diff --git a/README.md b/README.md
index bbf01b4..538a777 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,33 @@ sequenceDiagram
     Bob-->>John: Jolly good!
 ```
 
+## [Packet](https://mermaid.js.org/syntax/packet.html)
+
+```mermaid
+---
+title: "TCP Packet"
+---
+packet-beta
+0-15: "Source Port"
+16-31: "Destination Port"
+32-63: "Sequence Number"
+64-95: "Acknowledgment Number"
+96-99: "Data Offset"
+100-105: "Reserved"
+106: "URG"
+107: "ACK"
+108: "PSH"
+109: "RST"
+110: "SYN"
+111: "FIN"
+112-127: "Window"
+128-143: "Checksum"
+144-159: "Urgent Pointer"
+160-191: "(Options and Padding)"
+192-255: "Data (variable length)"
+```
+
+
 ## [Gantt diagram](https://mermaid.js.org/syntax/gantt.html)
 
 ```mermaid