examples.por: fix typo

[peteut]

ResetSignal().eq(delay == 0) should spell ResetSignal().eq(delay != 0) as delay counts down to zero.

[codecov]

Codecov Report

Merging #42 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #42   +/-   ##
======================================
  Coverage    85.5%   85.5%           
======================================
  Files          27      27           
  Lines        3912    3912           
  Branches      764     764           
======================================
  Hits         3345    3345           
  Misses        478     478           
  Partials       89      89

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