[cyborg] Y cycle PTL nomination from 17th August

Hi all, The Y cycle PTL nomination will start on 17th August. Firstly, I want to give a big thanks to all of you, thank you for the continuously support and contribution for Cyborg. As I have been this role for almost 2 cycles, I think it is better to have someone else to take this role which can bring us new ideas. Please refer to this guide[1] if you want submit your candidacy. If you have any question, please feel free to contact me. [1] https://governance.openstack.org/election/#how-to-submit-a-candidacy Thanks, Xin-Ran