Update app.py

app.py

@@ -116,6 +116,7 @@ Resources used to build this project :
 * dataset : https://huggingface.co/datasets/not-lain/wikipedia
 * faiss docs : https://huggingface.co/docs/datasets/v2.18.0/en/package_reference/main_classes#datasets.Dataset.add_faiss_index 
 * chatbot : https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct
+* Full documentation : https://huggingface.co/blog/not-lain/rag-chatbot-using-llama3 
 """