[Docs] Update recurrent_gemma.md for some minor nits (huggingface#30238)

Update recurrent_gemma.md

docs/source/en/model_doc/recurrent_gemma.md

@@ -26,9 +26,9 @@ The abstract from the paper is the following:
 
 Tips:
 
-- The original checkpoints can be converted using the conversion script `src/transformers/models/recurrent_gemma/convert_recurrent_gemma_weights_to_hf.py` 
+- The original checkpoints can be converted using the conversion script [`src/transformers/models/recurrent_gemma/convert_recurrent_gemma_weights_to_hf.py`](https://github.com/huggingface/transformers/blob/main/src/transformers/models/recurrent_gemma/convert_recurrent_gemma_to_hf.py). 
 
-This model was contributed by [Arthur Zucker](https://huggingface.co/ArthurZ).
+This model was contributed by [Arthur Zucker](https://huggingface.co/ArthurZ). The original code can be found [here](https://github.com/google-deepmind/recurrentgemma).
 
 
 ## RecurrentGemmaConfig