Expose metadata link to next version of the model : stabilityai/stable-diffusion-3-medium

This PR adds a metadata field to link this model to a newer version of the same model family: stabilityai/stable-diffusion-3-medium. This metadata field helps ensure people are using the latest version of your model.

If there are multiple versions, i.e., version 1, version 2, and version 3, linking versions 1 and 2 and 2 and 3 will always show the latest version. See https://huggingface.co/docs/hub/model-cards#specifying-a-new-version for more info.

Here is an example of what this looks like:


README.md

@@ -3,6 +3,7 @@ license: openrail++
 tags:
 - stable-diffusion
 - text-to-image
+new_version: stabilityai/stable-diffusion-3-medium
 ---
 
 # Stable Diffusion v2 Model Card