disables rules about setState in didmount and didupdate

[fterdal]

Assignee Tasks

Please check all that apply.

• referenced any relevant issue(s)
• Adding new rule(s)?
  • Included rule summary verbatim from docs as a comment
  • Placed in the right section (stylistic / node / etc.), in alphabetical order
  • Set to 0 (off), 1 (warn), or 2 (error) as spec'd in contributing guidelines
• Changing active rule(s) severity?
  • Set to 1 (warn), or 2 (error) as spec'd in contributing guidelines
• Removing rule(s)?
  • Set to 0 if disabling, or delete only if deprecated

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Your PR Notes Here

These warnings are inconsistent with the recommendations we make in Learndot and in slides, and aren't especially instructive.
closes #56