Update app.py

app.py

@@ -8,7 +8,7 @@ import torch
 #with open("knowledge.txt", "r", encoding="https://huggingface.co/spaces/MindMattersKWK/mindmatters/resolve/main/knowledge.txt") as file:
   #knowledge_text = file.read()
 
-client = InferenceClient(model="Qwen/Qwen2.5-7B-Instruct", token=os.environ.get(“HF”))
+client = InferenceClient(model="Qwen/Qwen2.5-7B-Instruct", token=os.environ.get("HF"))
 
 def respond(message, history):
     messages = [{"role": "system",