Update requirements.txt

requirements.txt

@@ -1,5 +1,5 @@
-langchain
-#==0.0.184
+gigachain
+#langchain==0.0.184
 PyPDF2==3.0.1
 python-dotenv==1.0.0
 streamlit==1.18.1
@@ -9,10 +9,8 @@ altair==4
 tiktoken==0.4.0
 # uncomment to use huggingface llms
 huggingface-hub==0.14.1
-llama-cpp-python
-#==0.1.83
+llama-cpp-python#==0.1.83
 fire
-gigachain
 
 # uncomment to use instructor embeddings
 InstructorEmbedding==1.0.1