Health Indicator sample missing import statement

[jbayer]

The code example in 45.6.2 Writing custom HealthIndicators is missing an import for Health on the spring boot documentation.

the full import list should look like:

import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthIndicator;
import org.springframework.stereotype.Component;

[philwebb]

Thanks!