Reminder: Fedora 26 Upgrade Test Day tomorrow

[Adam Williamson]

Just a reminder, as the announcement was over a week ago, that tomorrow
is Fedora 26 Upgrade Test Day in #fedora-test-day on Freenode!

https://fedoraproject.org/wiki/Test_Day:2017-06-30_Upgrade_Test_Day

Please come out and help test if you can. Thanks!