Reboot Sentinel Command example uses Helm values instead of argument

[vitality411]

Hi,
in contrast to all other examples on the configuration documentation page the example for Reboot Sentinel Command uses the Helm values instead of the argument:

website/content/en/docs/configuration.md

Lines 81 to 84 in b5a7a18

	```yaml
	configuration:
	rebootSentinelCommand: sh -c "! needs-restarting --reboothint"
	```

I think that should be adjusted, especially since you have to pay attention to the quotation marks when you use that as an argument.