Update app.py

app.py

@@ -56,7 +56,7 @@ st.write("This measure is used to measure how the collected data is spreding or
 
 st.write("Measures of variability are classified into two types:")
 
-st.markdown("**1.Absolute**")
+st.sybheader("**1.Absolute**")
 
 st.write("a.Range")
 
@@ -66,7 +66,7 @@ st.write("c.Variance")
 
 st.write("d.Standard deviation")
          
-st.markdown("**2.Relative**")
+st.subheader("**2.Relative**")
 
 st.write("a.Co-efficient of Range")