docs: update calendar, add news item, and link releases notes for 20.0.4
authorEric Engestrom <eric@engestrom.ch>
Fri, 3 Apr 2020 11:12:10 +0000 (13:12 +0200)
committerEric Engestrom <eric@engestrom.ch>
Fri, 3 Apr 2020 11:16:07 +0000 (13:16 +0200)
commit8af2eba4245636ff867743577433cff4009e16c7
tree75b5f6fbb6bba9dc8534b89bb21a0c15ad14ccdf
parenta89b08b7449c6188b8f129f43c84f229b5101b0b
docs: update calendar, add news item, and link releases notes for 20.0.4

Note that the next 20.0.x releases numbers have been shifted as this was
not one of the planned releases.

Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4428>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4428>
docs/index.html
docs/release-calendar.html
docs/relnotes.html