Update app.py

app.py

@@ -40,7 +40,11 @@ examples = [
     [os.path.abspath("NASDAQ_AAPL_2020.pdf"), "how much are the outstanding shares ?"],
     [os.path.abspath("NASDAQ_AAPL_2020.pdf"), "what is competitors strategy ?"],
     [os.path.abspath("NASDAQ_AAPL_2020.pdf"), "who is the chief executive officer ?"],
-    [os.path.abspath("NASDAQ_MSFT_2020.pdf"), "How much is the guided revenue for next quarter?"]
+    [os.path.abspath("NASDAQ_MSFT_2020.pdf"), "How much is the guided revenue for next quarter?"],
+    [os.path.abspath("example_file.pdf"), "what are the name of all authors?"],
+    [os.path.abspath("breast cancer.pdf"), "What Causes Breast Cancer?"],
+    [os.path.abspath("v61n3a11.pdf"), "what is MDT?"]
+    
 ]