URL Cleanup

[spring-operator]

This commit updates URLs to prefer the https protocol. Redirects are not followed to avoid accidentally expanding intentionally shortened URLs (i.e. if using a URL shortener).

Fixed URLs

Fixed Success

These URLs were switched to an https URL with a 2xx status. While the status was successful, your review is still recommended.

• [ ] http://projectreactor.io/docs/core/release/api/reactor/core/publisher/Flux.html with 2 occurrences migrated to:
  https://projectreactor.io/docs/core/release/api/reactor/core/publisher/Flux.html (https result 200).
• [ ] http://projectreactor.io/docs/core/release/api/reactor/core/publisher/Mono.html with 2 occurrences migrated to:
  https://projectreactor.io/docs/core/release/api/reactor/core/publisher/Mono.html (https result 200).
• [ ] http://projectreactor.io/docs/core/release/reference/docs/index.html with 2 occurrences migrated to:
  https://projectreactor.io/docs/core/release/reference/docs/index.html (https result 302).

[simonbasle]

https://tech.io course redeployed