Update app.py

app.py

@@ -17,8 +17,8 @@ from sklearn import metrics
 with open('styles.css') as f:
   st.markdown(f'<style>{f.read()}</style>', unsafe_allow_html=True)
   
-st.markdown('###Mental Health App')
-st.markdown('##A machine learning app by Isabel')
+st.title('Mental Health App')
+st.header('A machine learning app by Isabel')
 
 
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