The page whose slug will change

Test:

• Set this page up, visit it (Done)
• Check and note the slug (= https://www.gli-manchester.net/old-slug )
• Change the slug (now = new-slug )
• Try new URL ( https://www.gli-manchester.net/new-slug )
• Try old URL : ( https://www.gli-manchester.net/old-slug DOESN’T WORK)