Update app.py

app.py

@@ -8,6 +8,7 @@ import spacy
 from spacy import displacy
 import re
 import numpy as np
+import certifi
 #from transformers import BlenderbotTokenizer, BlenderbotForConditionalGeneration
 from azure.cosmos import CosmosClient
 from azure.cosmos.exceptions import CosmosHttpResponseError