adding docs on how to disable task pod deletion

[soulchips]

Description

https://circleci.atlassian.net/browse/ONPREM-1672

Reasons

A link to a GitHub and/or JIRA issue (if applicable).
Otherwise, a brief sentence about why you made these changes.

Content Checklist

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[soulchips]

@rosieyohannan is there a way/guide on handling or ignoring these lint errors? it's asking to change yaml to YAML which would not be correct in this example. It is also hates the use of "There is" which seems fine in the context of the sentence