Base on the [GOVERNANCE.md] of CoreDNS, we will need to update project lead's term:
1) Any PR should only be opened no earlier than 6 weeks before the end of current lead's term
2) PR can only be merged after it has been opened for 4 weeks.
3) See [GOVERNANCE.md] for more details on how votes are counted.

Since it is less than 6 weeks before 11/11/2019, this PR:
1) propose to extend project lead's term from 11/11/2019 to 11/11/2020.
2) will keep open until at least to 10/29/2019 (4 weeks), so that community has a chance to voice opinions

Please specify +1/-1 for agree/disagree.

Note: Alternative PRs could be opened concurrently, as long as it following the rules specified in [GOVERNANCE.md].
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>