Emphasised reporting instructions in code of conduct

[harpolea]

Description

I have moved the instructions for reporting code of conduct violations so that they are clearer.

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have assigned/requested two reviewers for this pull request.

[codecov]

Codecov Report

Merging #1259 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1259   +/-   ##
=======================================
  Coverage   80.63%   80.63%           
=======================================
  Files          41       41           
  Lines        3424     3424           
=======================================
  Hits         2761     2761           
  Misses        663      663           

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