[pgjdbc/pgjdbc] 2a639f: Update README.md - Mailing list pgsql-jdbc

Branch: refs/heads/master
  Home:   https://github.com/pgjdbc/pgjdbc
  Commit: 2a639fd6ef4b47559cd4c0c71fb9116640e88c94
      https://github.com/pgjdbc/pgjdbc/commit/2a639fd6ef4b47559cd4c0c71fb9116640e88c94
  Author: Dave Cramer <davecramer@gmail.com>
  Date:   2018-12-14 (Fri, 14 Dec 2018)

  Changed paths:
    M certdir/README.md

  Log Message:
  -----------
  Update README.md



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