Submitting new talks to XenSummit via the design-sessions website

[George Dunlap <George.Dunlap@xxxxxxxxxx>]

Due to the re-scheduling of the XenSummit from June to July, as well as making 
it a virtual event covering a few more days, we have space to accept more talks.

Rather than going through the entire submission process again, we’ve decided to 
utilize the design session website.  If you wish to give a talk, simply submit 
a design session with `[TALK]` as the first part of the title.  The session 
will be scheduled normally based on interest, but everyone will know that the 
direction of this session will primarily be one-way.

Some talks we may end up “promoting” from design session to normally scheduled 
talks.

Looking forward to seeing you all at the Summit!

 -George Dunlap