- updated example schema catalog

example_catalog/schema_catalog.xml

@@ -5,4 +5,9 @@
    <entry schematype="schema" namespace="http://slubarchiv.slub-dresden.de/rights1" schemauri="https://slubarchiv.slub-dresden.de/fileadmin/groups/slubsite/slubarchiv/standards/rights/rights1.xsd" />
    <entry schematype="schema" namespace="http://www.loc.gov/standards/alto/ns-v2#" schemauri="http://www.loc.gov/standards/alto/alto-v2.0.xsd" />
    <entry schematype="relaxng" namespace="http://www.music-encoding.org/ns/mei" schemauri="https://raw.githubusercontent.com/music-encoding/music-encoding/v3.0.0/schemata/mei-all.rng" />
+   <entry schematype="schema" namespace="http://www.loc.gov/METS/" schemauri="https://www.loc.gov/standards/mets/version1121/mets.xsd" />
+   <entry schematype="schema" namespace="http://www.opengis.net/kml/2.2" schemauri="https://schemas.opengis.net/kml/2.3/ogckml23.xsd"/>
+   <entry schematype="schema" namespace="http://www.w3.org/2005/Atom" schemauri="https://schemas.opengis.net/kml/2.3/atom-author-link.xsd"/>
+   <entry schematype="schema" namespace="http://www.opengis.net/gml/3.2" schemauri="https://schemas.opengis.net/gml/3.2.1/gml.xsd"/>
+   <entry schematype="relaxng" namespace="http://docbook.org/ns/docbook" schemauri="https://docbook.org/xml/5.1/rng/docbook.rng"/>
 </slubschemacatalog>