Set document title to model name, add (non-existing) github link

README.md

@@ -6,11 +6,12 @@ base_model:
 library_name: sentence-transformers
 ---
 
-Model Card
-==========
+ARM64BERT-embedding 🦾
+======================
 
 _Who to contact:_ fbda [at] nfi [dot] nl \
-TODO: add link to github repo
+
+[GitHub repository](https://github.com/NetherlandsForensicInstitute/asmtransformers)
 
 ## General
 ### What is the purpose of the model