NPA-6590: Fix UTF-8 issue in spec

[ehallam]

Pull Request

🧾 Ticket Link

https://nhsd-jira.digital.nhs.uk/browse/NPA-6590

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📄 Description/Summary of Changes

• Minor fix to change to a UTF-8 friendly apostrophe
• The build has been successful it's just not reporting it https://dev.azure.com/NHSD-APIM/API%20Platform/_build/results?buildId=508634&view=results

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🧪 Developer Testing Carried Out

• We can't test this locally, but it matches the other quotes that render properly in the api catalogue

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[github-actions]

This branch is work on a ticket in the NHS Digital NPA JIRA Project. Here's a handy link to the ticket:

NPA-6590

[github-actions]

This branch is work on a ticket in the NHS Digital NPA JIRA Project. Here's a handy link to the ticket:

NPA-6590