fix: guardian-related code examples

[pmalouin]

Changes

Our public docs do not render properly for some of the guardian endpoints/methods. Some methods are missing:

By adding the missing @example tokens, the methods are all documented properly:

I also made the indentation uniform across example snippets.

References

Please include relevant links supporting this change such as a:

• support ticket
• community post
• StackOverflow post
• support forum thread

Testing

You can generate the documentation locally using npm run jsdoc:generate and browsing the resulting docs.

• This change adds unit test coverage
• This change adds integration test coverage

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All existing and new tests complete without errors