Update requirements.txt

requirements.txt

@@ -1,6 +1,15 @@
-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
-streamlit==1.33.0
+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
+streamlit==1.33.0
+unstructured==0.13.7
+pdfminer.six
+pdf2image
+pillow_heif
+opencv-python
+pytesseract
+unstructured_inference
+chromadb 
+pypdf