$ xstructural markdown \
  --sourceFile com.io7m.xstructural.documentation/target/documentation/main.xml \
  --outputDirectory out
xstructural: XSValidator: INFO: validate (xstructural) /home/user/xstructural/com.io7m.xstructural.documentation/target/documentation/main.xml
xstructural: XSTransformer: INFO: document uses namespace urn:com.io7m.structural:9:0

$ ls -alF out/
total 440
drwxr-xr-x  2 xs xs     60 Oct  2 16:25 ./
drwxr-xr-x 15 xs xs    320 Oct  2 16:25 ../
-rw-r--r--  1 xs xs 149120 Oct  2 16:25 index.md
-rw-r--r--  1 xs xs    515 Oct  2 16:25 messages.log
-rw-r--r--  1 xs xs 287760 Oct  2 16:25 trace.xml
