Update app.py

app.py

@@ -249,7 +249,7 @@ with st.sidebar:
 
 # --- Main Page Layout ---
 st.title("📝 Chunk Webpage Content Editor")
-st.caption("A tool to fetch, chunk, and refine web content for AI synthesis. Inspired by Andrea Volpini's work.")
+st.caption("A tool to fetch, chunk, and refine web content for AI synthesis. Inspired by Andrea Volpini's [work on content chunking](https://www.linkedin.com/pulse/understanding-chunking-google-ai-mode-practical-content-volpini-zseaf/).")
 
 url_input = st.text_input("Enter a webpage URL to start", key="url_input")