RedoclyAPIBlock test

[melissag-ensemble]

Description

Setup to test RedoclyAPIBlock

Related Issue

https://jira.corp.adobe.com/browse/DEVSITE-1241

Motivation and Context

adobe-dev-console currently doesn't use RedoclyAPIBlock: https://github.com/search?q=repo%3AAdobeDocs%2Fadobe-dev-console%20%3CRedoclyAPIBlock&type=code

This PR sets up a dummy API page so we can test the RedoclyAPIBlock, specifically to see if the CORS issue we were running into with adobe-io-website fresh-spectrum-less branch will be fixed here once the API spec is deployed to the same domain as the EDS page

How Has This Been Tested?

Will need to deploy this to stage to publish the content, and then deploy adp-devsite to test with Redocly's on premise license

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.