[Fedora-spins] Beta freeze in one week

[Bruno Wolff III]

Since live images are being composed use the git repo at this point in the
release process (branch happens around final freeze), it is important
to not be checking in changes to the spin-kickstarts repo for the Desktop
(gnome) or KDE spins or anything they include during the Beta freeze
period unless it is to fix a Beta blocker bug or a Beta Nice to Have bug.
Please do not push out such changes during that time.

Beta freeze starts late on Tuesday April 5th and continues until a release
candidate is accepted. Typically acceptance is done at a Go / No Go
meeting, the first of which will be on April 13th.