Update README.md

Update the old link with official link.

README.md

@@ -23,7 +23,7 @@ TAPEX is based on the BART architecture, the transformer encoder-encoder (seq2se
 
 ### How to Fine-tuning
 
-Please find the fine-tuning script [here](https://github.com/SivilTaram/transformers/tree/add_tapex_bis/examples/research_projects/tapex).
+Please find the fine-tuning script [here](https://github.com/huggingface/transformers/tree/main/examples/research_projects/tapex).
 
 ### BibTeX entry and citation info