Improve model card: Add library_name and GitHub link

This PR improves the model card by:
- Adding `library_name: transformers` to the metadata, which enables the "Use in Transformers" widget on the Hub and improves model discoverability.
- Adding a direct link to the associated GitHub repository for easier access to the code and related project resources.

README.md

@@ -1,5 +1,7 @@
 ---
 license: apache-2.0
+pipeline_tag: text-generation
+library_name: transformers
 tags:
 - transformer
 - causal-lm
@@ -7,11 +9,12 @@ tags:
 - constructive-learning
 - frozen-embeddings
 - bvv
-pipeline_tag: text-generation
 ---
 
 # Model Card for abs-bvv-4
 
+**GitHub Repository**: [https://github.com/Bochkov/BVV241-Tokenizers-Embeddings-Benchmarks](https://github.com/Bochkov/BVV241-Tokenizers-Embeddings-Benchmarks)
+
 ## Model Description
 
 `abs-bvv-4` is a 1.9 billion parameter decoder-only Transformer model. It is the 4th model in the **Progressive Growth Transformers (PGT)** series, designed to explore how linguistic and reasoning capabilities emerge as a function of model depth.
@@ -103,4 +106,5 @@ outputs = model.generate(
     do_sample=True
 )
 
-print(tokenizer.decode(outputs[0], skip_special_tokens=True))
+print(tokenizer.decode(outputs[0], skip_special_tokens=True))
+```