matrix.xsd:26-28: Matrix.xsd: add xsd:documentation...

[0pdd]

The puzzle 134-3180ea38 from #134 has to be resolved:

jpeek/src/main/resources/org/jpeek/xsd/matrix.xsd

Lines 26 to 28 in 18efdff

	@todo #134:30min Matrix.xsd: add `xsd:documentation` tags as per issue #134. We need to
	document the schemas in src/resources/org/jpeek/xsd so that the semantics of
	the generated XML documents is transparent for maintainers.

The puzzle was created by yegor256 on 05-Feb-21.

Estimate: 30 minutes, role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.