Exhibition Guides url structure change

[LaurenFBaily]

What

Update url structure for Exhibition Guides:

Page title	Description	New url
Jason and the Adventure of 254 exhibition guides	Exhibition guide landing page	/exhibition-guides/[exhibition title]
Jason and the Advenue of 254 - audio	Exhibition highlight tour - audio	/exhibition-guides/[exhibition-title]/audio-highlight-tour
Jason and the Advenue of 254 - captions & transcripts	Exhibition text	/exhibition-guides/[exhibition-title]/exhibition-text
Jason and the Advenue of 254 - BSL videos	Exhibition highlight tour - BSL videos	/exhibition-guides/[exhibition-title]/bsl-video-highlight-tour

Why

Make this a hackable url

Background

See epic: Descriptive urls

Done when