allow for changing index example

app.py

@@ -62,12 +62,13 @@ with st.expander("Upload csv file"):
     uploaded_file = st.file_uploader("Choose a csv file", type="csv", key='file_uploader')
 
 
-# If file is uploaded, run inference - QA pipelines can't run batch ATM
+# If file is uploaded, run inference - QA pipelines can't run batch
 if uploaded_file is not None:
     df = load_data(uploaded_file)
 
     # Run inference on first example
-    first_example = df['review'][0]
+    user_idx = st.text_input('Enter index')
+    first_example = df['review'][int(user_idx)]
     question = "How was the recipe improved?"
     resp = question_answer(question=question,
                              context=first_example,