Under etc dictory, add sample yaml config file
named skyline-apiserver.yaml.sample
Updated the README.md and README-zh_CN.md file
to make quick start more clearly.
Closes-Bug: #1931673
Change-Id: I023cfbeac33543d2989f5017c878cd17160f8c76
Before adding any code, add basic Zuul support for the repository
(noop-tests) so that it can pass Zuul checks and gating.
Change-Id: Ib728f83fedd08c989c38f02672f700fe133b39f5