Update app.py

app.py

@@ -25,7 +25,7 @@ def pdf_to_document_store(pdf_files):
     for pdf in pdf_files:
         doc = converter.convert(file_path=pdf.name, meta=None)[0]
         preprocessed_doc=preprocessor.process([doc])
-        st.write(preprocessed_doc[0]['content'])
+        st.write('Preprocessed content', preprocessed_doc[0]['content'])
         documents.append(preprocessed_doc)
     document_store.write_documents(documents)
     st.write('Document count: ', document_store.get_document_count())