Spring Boot with Docker guide - incorrect statement about user and group

[mrbuddypal]

The guide "Spring Boot with Docker" (https://spring.io/guides/gs/spring-boot-docker/) states:

"The build creates a spring user and a spring group to run the application."

At the time that this statement appears, it isn't true. The preceding Docker file does not create the user and group. Since the issue of running as a non-root user is addressed shortly thereafter, it might be best to remove the statement.