prose example mis-match for `@who` (of `<sp>`)

[sydb]

In att.ascribed.xml the paragraph of description in the 1st <exemplum> says

        <p>In the following example from Hamlet, speeches (<gi>sp</gi>) in the body of the play 
        are linked to <gi>castItem</gi> elements in the <gi>castList</gi> using the <att>who</att>
        attribute.</p>

But if you look at the example, the @who attributes actually point to the <role> elements, not the <castItem>s.

[JanelleJenstad]

Easy fix (I think). I will revise the example and chapter text after Council F2F.

[sydb]

Note — PR with a proposed fix is #2477.

[ebeshero]

Merged and closed. Small editorial changes like this can be pushed directly to dev.