Update app1.py

app1.py

@@ -42,7 +42,7 @@ if "vector_created" not in st.session_state:
 st.title("Blah-2")
 
 # Step 1: Choose PDF Source
-pdf_source = st.radio("Upload or provide a link to a PDF:", ["Upload a PDF file", "Enter a PDF URL"], index=0, horizontal=True)
+pdf_source = st.radio("Upload or provide a link to a PDF:", ["Enter a PDF URL", "Upload a PDF file"], index=0, horizontal=True)
 
 if pdf_source == "Upload a PDF file":
     uploaded_file = st.file_uploader("Upload your PDF file", type="pdf")
@@ -55,7 +55,7 @@ if pdf_source == "Upload a PDF file":
         st.session_state.vector_created = False
 
 elif pdf_source == "Enter a PDF URL":
-    pdf_url = st.text_input("Enter PDF URL:")
+    pdf_url = st.text_input("Enter PDF URL:", value = "https://arxiv.org/pdf/2406.06998")
     if pdf_url and not st.session_state.pdf_path:
         with st.spinner("Downloading PDF..."):
             try: