Update app.py

app.py

@@ -40,11 +40,11 @@ option = st.sidebar.selectbox(
 
 col1, col2, col3 = st.columns([1,1,1])
 with col1:
-    uncase=st.button('Remove Casing')
+    uncase=st.checkbox('Remove Casing')
 with col2:
-    unpunct=st.button('Remove Punctation')
+    unpunct=st.checkbox('Remove Punctation')
 with col3:
-    unspace=st.button('Remove Spaces')
+    unspace=st.checkbox('Remove Spaces')
 
 if uncase:
     mytext = text.lower()