Update HEALTH_CHECKS.md

[eburhansjah]

Summary

• What changes are proposed in this pull request?
  Updated Health_Checks.md: Included details on formatting of error labels + real life example

Scope and Impact

• API Changes? No
• Should any users or specific teams be notified of breaking changes?

GitHub Issue

• #XYZ - Issue Name 1

How was this Pull-Request Tested and Validated?

• Steps used to test and validate the changes. Commands and additional content is welcomed.
• If not applicable mark as N/A.

Pull-Request Reminders

• Does the Autopilot Readme require updates?

  • Yes or No -- if yes, were they made? No

• Are there any new software dependencies introduced to this Pull-Request?

  • Yes or No -- if yes, what are they? No

[cmisale]

That's great, thanks a lot for helping improving the documentation!