Fix thumbnail link

README.md

@@ -9,7 +9,7 @@ license: apache-2.0
 short_description: In-browser tool calling, powered by Transformers.js
 app_build_command: npm run build
 app_file: dist/index.html
-thumbnail: https://huggingface.co/spaces/LiquidAI/LFM2-WebGPU/blob/main/public/thumbnail.png
+thumbnail: https://huggingface.co/spaces/LiquidAI/LFM2-WebGPU/resolve/main/public/thumbnail.png
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference