Update app.py

app.py

@@ -63,6 +63,13 @@ def rerank_documents(query, docs, top_n=5):
     return [doc for doc, _ in reranked[:top_n]]
 
 
+@app.route('/')
+def index():
+    return '''
+    <h2>Medical Chatbot API</h2>
+    <p>App is running!</p>
+    <p>Use <code>/chat_chatbot</code> with POST method to interact with the chatbot.</p>
+    '''