remove "analytics events added" from PR template

[joeyorlando]

Also some markdown auto-formatting changes that got applied.

Checklist

=========

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have checked for similar issues and haven't found anything relevant.
• This is not a security issue (which should be reported here: https://circleci.com/security/)
• I have read Contribution Guidelines.

Changes

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Follow-up PR on #708 to remove "Analytics Events added" section

Rationale

=========

See above

Considerations

==============

N/A

Analytics Events Added

======================

N/A

Screenshots

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N/A

[codecov]

Codecov Report

Merging #709 (2922e6c) into master (5e6ca98) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #709   +/-   ##
=======================================
  Coverage   28.82%   28.82%           
=======================================
  Files          42       42           
  Lines        4860     4860           
=======================================
  Hits         1401     1401           
  Misses       3261     3261           
  Partials      198      198           

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