Update README.md

README.md

@@ -15,7 +15,7 @@ tags:
 - Car
 - Wildlife
 - Architecture
-thumbnail: https://res.cloudinary.com/dcrovdixu/image/upload/t_Thumbnail/v1708559065/image-grid.png_9_q8zorf.jpg
+thumbnail: https://imagedelivery.net/siANnpeNAc_S2q1M3-eDrA/7e48c6d2-ec31-4d16-784e-c937a3fe6700/padthumb
 base_model: stabilityai/stable-diffusion-xl-base-1.0
 ---