fix rst warning in docs/bundle helm-kubernetes-templating-tool.rst

[stephencompall-DA]

[error] Warning, treated as error:
[error] /__w/splice/splice/docs/src/community/helm-kubernetes-templating-tool.rst:11:Inline emphasis start-string without end-string.

Also removes some trailing spaces. Followup to #1172.

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Cluster Testing

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[isegall-da]

Argh, why is our static checks for docs so bad?? (already have an issue for it)