diff --git a/README.md b/README.md
index a88d85b9c50d1d5be972ac67f5cd05fa72e3b886..b8fd99dd6e0e7cb93f7d4a959e3becb3a542092d 100644
--- a/README.md
+++ b/README.md
@@ -34,13 +34,16 @@ Schemas
 ```
 <?xml version="1.0" encoding="UTF-8"?>
 <slubschemacatalog>
-   <entry schematype="schema" namespace="http://www.loc.gov/mods/v3" schemaurl="http://www.loc.gov/standards/mods/v3/mods-3-8.xsd" />
-   <entry schematype="schema" namespace="http://www.lido-schema.org" schemaurl="http://www.lido-schema.org/schema/v1.1/lido-v1.1.xsd" />
-   <entry schematype="schema" namespace="http://slubarchiv.slub-dresden.de/rights1" schemaurl="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#" schemaurl="http://www.loc.gov/standards/alto/alto-v2.0.xsd" />
+   <entry schematype="schema" namespace="http://www.loc.gov/mods/v3" schemauri="http://www.loc.gov/standards/mods/v3/mods-3-8.xsd" />
+   <entry schematype="schema" namespace="http://www.lido-schema.org" schemauri="http://www.lido-schema.org/schema/v1.1/lido-v1.1.xsd" />
+   <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="nonvalidating" namespace="http://slub-dresden.de/" />
+   <entry schematype="nonvalidating" namespace="http://slub-dresden.de/slubarchiv" schemauri="nothing"/>
 </slubschemacatalog>
 ```
-* please ensure, that the 'schemaurl' starts  either with 'http://$server/', 'https://$server/' or 'file://localhost/'! For testing purposes relative URLs also supported. 
+* please ensure, that the 'schemauri' starts  either with 'http://$server/', 'https://$server/' or 'file://localhost/'! For testing purposes relative URIs also supported.
+* schematype "nonvalidating" does not need a schemauri attribute. If commited, it will be ignored
 
 For a (german) introduction how to use it, check https://www.data2type.de/xml-xslt-xslfo/docbook/xml-kataloge