fix walkthrough example

[TheKangaroo]

fixes #378

This PR makes sure, the ServiceMonitor and the Service port name match each other.

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Hi @TheKangaroo. Thanks for your PR.

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[TheKangaroo]

cla signed

[dgrisonnet]

Hello @TheKangaroo, thank you for fixing this part of the documentation! I just have one small nit comment, but it looks good to me overall 🙂

/ok-to-test

[dgrisonnet]

The opening <detail> block is missing above, hence the sample-app.service.yaml content isn't collapsible.

[TheKangaroo]

good catch. fixed it :)

[dgrisonnet]

/check-cla

[dgrisonnet]

/lgtm

/cc @s-urbaniak for approval

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/lgtm

/cc @s-urbaniak for approval

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[TheKangaroo]

/assign @s-urbaniak

[dgrisonnet]

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dgrisonnet, TheKangaroo

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