Added missing libraries

requirements.txt

@@ -1,6 +1,8 @@
-langchain==0.2.0
-langchain-community==0.2.0
-langchain-core==0.2.0
-langchain-openai==0.1.7
-langchain-text-splitters==0.2.0
-tiktoken==0.7.0
+chainlit==1.1.101
+datasets==2.19.1
+faiss-cpu==1.8.0
+langchain==0.2.0
+langchain-community==0.2.0
+langchain-openai==0.1.7
+tiktoken==0.7.0
+gradio_client