message: Fix typo in the code of conduct file
diff: @@ -12,7 +12,7 @@ page.
  ## Project Specific Etiquette
  -Please consider the advice in the [Bugzilla ettiquette
  +Please consider the advice in the [Bugzilla etiquette
  guide](https://bugzilla.mozilla.org/page.cgi?id=etiquette.html) when
  contributing to this project.
  