Fix broken link (remote-functions)

[nbyrneKX]

Documentation template

What does this change introduce?

Checklist

• [ x] Have you ensured that any changes to the documentation are correctly formatted, in particular are code snippets being correctly displayed?
• [ x] If a new class has been added has a documentation stub .md file associated with it been created?
• [ x] Have you ensured that any included hyperlinks are operating correctly?
• [ x] If any documentation page has been created has it been added to mkdocs.yml
• [ x] Have you checked your changes with a spell checker? (US English)