Update app.py

app.py

@@ -57,7 +57,11 @@ st.title("Article Summarizer")
 summary_type = st.sidebar.selectbox("Summary type", options=["Abstractive", "Extractive"])
 
 st.markdown(
-	    "This application aims to make an extractive summary of newspaper articles from the text of the article or the url link of the article. The summary is based on  a BERT model.""")
+	    "This application aims to make an extractive summary of newspaper articles from the text of the article or the url link of the article. The summary is based on  a BERT model.")
+	    
+st.markdown("""An extractive summary is one which extracts the most informative sentences from the article. It will therefore only consist of sentences present in the original text. """)
+
+st.markdown("""An abstract summary is a summary which captures the essential ideas of the text. An abstract summary may contain sentences which are not present in the original text.""")
 	    
 st.markdown("""Please do note that the model will take longer to generate summaries for documents that are too long.""")