Add XML callouts to CatalogPrimer.adoc, as a test.
Add XML callouts to CatalogPrimer.adoc, as a test.

Unidata/netcdf-java,Unidata/netcdf-java,Unidata/netcdf-java,Unidata/netcdf-java,Unidata/netcdf-java,Unidata/netcdf-java,Unidata/netcdf-java