update README.md (#13542)
update README.md (#13542)

Co-authored-by: shardingsphere <34c6fceca75e456f25e7e99531e2425c6c1de443@shardingsphere.apache.org>
apache/incubator-shardingsphere,apache/incubator-shardingsphere,apache/incubator-shardingsphere,apache/incubator-shardingsphere