Update app.py

app.py

@@ -59,14 +59,14 @@ if selected_country:
         ['child_mortality_rate', 'population'],
         as_=['Metric', 'Value']
     ).mark_line(point=True).encode(
-        x=alt.X('year:O', title='Year (Every 20 Years)', axis=alt.Axis(labelAngle=0)),
-        y=alt.Y('Value:Q', title="Scaled Metrics (Child Mortality Rate per Population)", scale=alt.Scale(type='linear')),
+        x=alt.X('year:O', title='Year', axis=alt.Axis(labelAngle=0)),
+        y=alt.Y('Value:Q', title="Child Mortality Rate per Population", scale=alt.Scale(type='linear')),
         color=alt.Color('Metric:N', title='Metrics', legend=alt.Legend(orient='top')),
         tooltip=['year', 'Metric:N', 'Value:Q']
     ).properties(
         width=800,
         height=400,
-        title=f"Child Mortality Rate and Population Trends in {selected_country} (Every 20 Years)"
+        title=f"Child Mortality Rate and Population Trends in {selected_country}"
     )
 
     st.altair_chart(chart, use_container_width=True)