Update app.py

app.py

@@ -52,8 +52,8 @@ def get_json_file(json_docs):
     temp_filepath = os.path.join(temp_dir.name, json_docs.name)
     with open(temp_filepath, "wb") as f:
         f.write(json_docs.getvalue())
-        json_docs = json_doc.replace(',}','}')
-        json_docs = json_doc.replace(',]',']')
+        json_docs = json_docs.replace(',}','}')
+        json_docs = json_docs.replace(',]',']')
     json_loader=JSONLoader(
         temp_filepath,
         jq_schema='.'