Update app.py

app.py

@@ -30,7 +30,7 @@ logger = logging.getLogger(name)
 
 HF_API_KEY = os.environ.get("HF_API_KEY")
 if not HF_API_KEY:
-raise ValueError("Please set the HF_API_KEY environment variable.")
+    raise ValueError("Please set the HF_API_KEY environment variable.")
 
 client = InferenceClient(provider="hf-inference", api_key=HF_API_KEY)