Links added:
* part of the reference documentation listing mave/gradle coordinates
* screencast published on the Spring blog (creating and deploying a REST
app under 5 minutes)
Since the main example here is using the `spring-context` module,
Spring developers should be aware of all the other existing Spring
modules and their artifacts names.
A link to the corresponding section in the reference documentation is
added.
Issue: SPR-11534
