The run command lets you run another test from this
test, in a similar way to JUnit test-suites. This can be a useful
way to view progress on a set of acceptance tests for a story.
The format is:
<a concordion:run="runner-name" href="relative-link">some link text</a>
The runner-name should normally be "concordion". However, it
is possible to implement your own runners to run tests implemented in another tool.
Here we run the test for the set command using this HTML:
<a concordion:run="concordion" href="../set/Set.html">set command</a>