States Page not updating

I had update configuration.yaml file with few lines under customize: section

customize:
# Add an entry for each entity that you want to overwrite.
switch.MBD_Fan:
friendly_name: Master Bedroom Fan
icon: mdi:fan
switch.MBD_Light:
friendly_name: Master Bedroom Light
icon: mdi:ceiling-light
switch.MBD_TableLight:
friendly_name: Master BD Table Light
icon: mdi:clamp:
then i had check the configuration.yaml file and it is valid and then i had stop the services and start the services but i did not see any changes on states page. Need help