merge branch 'pr-850'
merge branch 'pr-850'

Chris Aniszczyk (1):
  Remove Keyang Xie as a maintainer

LGTMs: vbatts jonjohnsonjr cyphar xiekayang
[No need for super-majority vote, since xiekayang LGTM'd his removal.]
Closes #850

opencontainers/image-spec,opencontainers/image-spec