Readme demos are not available

[UgmaDevelopment]

Describe the bug It appears that the demos linked in the front page of this repo are not available (as of today, December 28th). When you click on them you get this message 404 Not Found: Requested route ('springdoc-openapi-test-app2-rested-ardvark.eu-de.mybluemix.net') does not exist.

To Reproduce Steps to reproduce the behavior:

1. Navigate to the repo page
2. Scroll down to demo section
3. Click any of the demos

See the attached video

• What version of spring-boot you are using?
  • N/A
• What modules and versions of springdoc-openapi are you using?
  • N/A
• What is the actual and the expected result using OpenAPI Description (yml or json)?
  • N/A
• Provide with a sample code (HelloController) or Test that reproduces the problem
  • N/A

Expected behavior

• A clear and concise description of what you expected to happen.
  • I don't know what the demo does, but I expected the demo to appear instead of an error.
• What is the expected result using OpenAPI Description (yml or json)?
  • N/A

Screenshots I'll do you one better. Here's a video:

https://user-images.githubusercontent.com/19827042/103252676-0292b800-493b-11eb-896c-774815d6b533.mp4

Additional context Add any other context about the problem here. I'm new around here. Thanks for all the effort so far with this project.

[bnasslahsen]

@UgmaDevelopment,

Thanks for this information. Links has been updated.