[tacker] Xena PTG

Hi, Next vPTG is going to be held 19-23 April. I've prepared etherpad for the PTG[1] and reserved same timeslots as previous, 6-8 am UTC from 20th Apr[2]. Please register from [3] and fill "Attendees" and "Topics" in the etherpad for your proposals. [1] https://etherpad.opendev.org/p/tacker-xena-ptg [2] https://ethercalc.net/oz7q0gds9zfi [3] https://april2021-ptg.eventbrite.com/ Thanks, Yasufumi