Update app.py

app.py

@@ -20,7 +20,7 @@ from huggingface_hub import login, InferenceClient
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 llm = HuggingFaceEndpoint(
     repo_id="google/gemma-7b",
-    huggingfacehub_api_token=os.getenv("agent4"),
+    huggingfacehub_api_token=os.getenv("HF_TOKEN"),
 )
 print("Loading LLM...")