Descriptor Reference for settings.xml is incorrect

The example settings.xml found here (http://maven.apache.org/ref/3.0.4/maven-settings/settings.html) is not valid!

65: <properties>
66: <key>value</key>
67: <properties/>

bad line 67: <properties/>
correct line 67: </properties>

Steps to reproduce:

• Copy & Paste the document into your IDE or XML editor.
• Start the xml validator and try to validate the document against http://maven.apache.org/xsd/settings-1.1.0.xsd