added button

app.py

@@ -2,7 +2,12 @@ import streamlit as st
 from transformers import pipeline
 
 pipe=pipeline("sentiment-analysis")
+st.header("Sentiment Analysis for Text")
 text=st.text_area("Enter your text!")
-if text:
-     out=pipe(text)
-     st.json(out)
+btn=st.button("Check")
+if btn:
+    if text:
+         out=pipe(text)
+         st.json(out)
+    else:
+        st.write("please Add text!")