bugfix: /README.TXT: to backup files not in Time Machine: need to use `brew services _ postgresql` instead of `launchctl _ ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist`
bugfix: /README.TXT: to backup files not in Time Machine: need to use `brew services _ postgresql` instead of `launchctl _ ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist`