Update access logging documentation

Minor changes to the documentation to make it clearer what the configuration
options and values are for access logging with Tomcat.

[#80898232]
Merge branch 'cgfrost-80898232-access-logging-doc'
Document excluded JAVA_OPTS memory configurations

Any environment variables or config in the 'config/java_opts.yml' file that
attempts to set a memory option will cause deployment to fail. This is not
documented and this commit adds the relavent documentation.

[#79949526]
Merge branch 'cgfrost-79949526-Java-opts-docs'