Record the repo's sibling links in the manifest

split_model.json

@@ -12,5 +12,9 @@
     "VideoX-Fun-mlx (engine): https://github.com/dgrauet/VideoX-Fun-mlx",
     "Base model weights: https://huggingface.co/dgrauet/CogVideoX-Fun-V1.5-5b-InP-mlx"
   ],
-  "usage_url": "https://github.com/dgrauet/void-model-mlx"
+  "usage_url": "https://github.com/dgrauet/void-model-mlx",
+  "extra_links": [
+    "q8 variant: https://huggingface.co/dgrauet/void-model-mlx-q8",
+    "q4 variant: https://huggingface.co/dgrauet/void-model-mlx-q4"
+  ]
 }