Update README.md

Author: yuuuxt

README.md

@@ -1,8 +1,10 @@
 docker_postgres_with_seq_uuid
 
+https://hub.docker.com/r/yuuuxt/postgres_seq_uuid
+
 add the following extension to postgres.
 
 https://github.com/tvondra/sequential-uuids
 
 think of migrating data:
-https://github.com/tianon/docker-postgres-upgrade/blob/master/README.md
+https://github.com/tianon/docker-postgres-upgrade/blob/master/README.md