Xerces: Specify language of code section
@@ -28,10 +28,12 @@ To mount an XML file we use:
The strength and usage of this plugin is that it supports arbitrary XML files and
does not require a specific format. Given the following example of an XML file:
+```xml
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<xerces>foo
<bar meta="da_ta">bar</bar>
</xerces>
+```
Please note that if the key name does not correspond to the root element of the xml
file, the original name gets stored in a metakey called `xerces/rootname`. The content
