Improve model card: Add metadata and GitHub link

README.md

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-# For reference on model card metadata, see the spec: https://github.com/huggingface/hub-docs/blob/main/modelcard.md?plain=1
-# Doc / guide: https://huggingface.co/docs/hub/model-cards
-{}
+license: apache-2.0
+library_name: transformers
+pipeline_tag: feature-extraction
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 # bvv241-max: Unified Unicode Tokenizer (SOTA Intersection) with Frozen Embeddings
 
+This model was presented in the paper [Growing Transformers: Modular Composition and Layer-wise Expansion on a Frozen Substrate](https://arxiv.org/abs/2507.07129).
+
+Code: [https://github.com/Bochkov/BVV241](https://github.com/Bochkov/BVV241)
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 ## Tokenizer Description
 
 <!-- Provide a longer summary of what this model is. -->
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 }
 ```
 
-This work demonstrates that transformer blocks, not token embeddings, carry the semantic burden in LLMs — a step toward modular, fusable, multilingual LMs.
+This work demonstrates that transformer blocks, not token embeddings, carry the semantic burden in LLMs — a step toward modular, fusable, multilingual LMs.