Update requirements.txt

requirements.txt

@@ -1,12 +1,13 @@
-langchain==0.0.197
-gpt4all==0.3.4
-chromadb==0.3.23
-urllib3==2.0.2
-PyMuPDF==1.22.3
-python-dotenv==1.0.0
-unstructured==0.6.6
-extract-msg==0.41.1
-tabulate==0.9.0
-pandoc==2.3
-pypandoc==1.11
-tqdm==4.65.0
+langchain==0.0.197
+gpt4all==0.3.4
+chromadb==0.3.23
+urllib3==2.0.2
+PyMuPDF==1.22.3
+python-dotenv==1.0.0
+unstructured==0.6.6
+extract-msg==0.41.1
+tabulate==0.9.0
+pandoc==2.3
+pypandoc==1.11
+tqdm==4.65.0
+langchain-community