Update 06-distributed-monitoring.md

[legioner0]

fix typo in docs

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[oxzi]

Thanks. Please feel free to sign the CLA and ping back to get this merged.

[legioner0]

done

[cla-bot]

Thank you for your pull request. Before we can look at it, you'll need to sign a Contributor License Agreement (CLA).

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[bobapple]

@cla-bot check