[pgjdbc/pgjdbc] f727a2: reword [skip ci] instructions

Branch: refs/heads/davecramer-patch-3
  Home:   https://github.com/pgjdbc/pgjdbc
  Commit: f727a2e47a801e9284170a0d459e9063f90306d6
      https://github.com/pgjdbc/pgjdbc/commit/f727a2e47a801e9284170a0d459e9063f90306d6
  Author: Dave Cramer <davecramer@gmail.com>
  Date:   2018-07-20 (Fri, 20 Jul 2018)

  Changed paths:
    M CONTRIBUTING.md

  Log Message:
  -----------
  reword [skip ci] instructions



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