Update documentation to shows how to run the LRA coordinator with a JAX-RS container

• Add a line like The LRA Coordinator is JAX-RS compliant web application . Please consult the documentation for your preferred container for information on how to deploy applications of this form. into https://www.narayana.io//docs/project/index.html#d5e7502
• Share the expected endpoint location like we do for REST-AT (https://www.narayana.io//docs/project/index.html#_deploying_into_a_servlet_container)

Please also consider whether it is clear enough how to make expected configuration changes for the LRA coordinator deployed as this form of application and if not adding a bit of information about the location to change this configuration.