update related to title and file upload

app.py

@@ -1 +1,12 @@
-from backend import ResultPipeline
+#from backend import ResultPipeline
+import streamlit as st
+def main():
+    st.set_page_config(page_title="Bill App")
+    st.title("Bill Extractor")
+
+    #This section handle upload of files
+    files = st.file_uploader("Upload the file here:", type=["pdf"], accept_multiple_files=True)
+    submit = st.button("Extract")
+
+    # If user submitted the files, we need to call our pipeline
+