Update app.py

app.py

@@ -6,7 +6,7 @@ import os
 
 
 API_URL = "https://api-inference.huggingface.co/models/runwayml/stable-diffusion-v1-5"
-HF_token =os.getenv("HF_token")
+HF_token =os.getenv("HF_Token")
 headers = {"Authorization": f"Bearer {HF_token}"}