Update README.md

Add UI image

Author: mayooear

README.md

@@ -4,6 +4,9 @@ This monorepo is a customizable template example of an AI chatbot agent that "in
 
 This template is also an accompanying example to the book [Learning LangChain (O'Reilly)](https://tinyurl.com/learning-langchain): Building AI and LLM applications with LangChain and LangGraph.
 
+**Here's what the Chatbot UI looks like:**
+
+<img width="1096" alt="Screenshot 2025-02-20 at 05 39 55" src="https://github.com/user-attachments/assets/3a9ddea7-b718-476b-bdae-38839be20c12" />
 
 ## Table of Contents