update kubernetes with Claudie tutorial

[JKBGIT1]

This PR updates Kubernetes with Claudie tutorial based on the description in the #957

[svenja11]

Thank you for updating the tutorial @JKBGIT1!

Please add this comment to this PR, and I will merge it (remember to replace YOUR NAME <[email protected]> with your own information):

I have read and understood the Contributor's Certificate of Origin available at the end of
https://raw.githubusercontent.com/hetzneronline/community-content/master/tutorial-template.md
and I hereby certify that I meet the contribution criteria described in it.
Signed-off-by: YOUR NAME [email protected]

[JKBGIT1]

I have read and understood the Contributor's Certificate of Origin available at the end of
master/tutorial-template.md (raw)
and I hereby certify that I meet the contribution criteria described in it.
Signed-off-by: Jakub Hlavačka [email protected]