docs: update deprecated <coverage> config usage

[owenvoke]

Closes #240

[secondmanveran]

@owenvoke

How does this resolve the coverage issue? This page is about coverage, not source.

[owenvoke]

<source> is the replacement for determining which files to cover. Coverage now uses the include / exclude directories from <source>, rather than <coverage>.

[secondmanveran]

Gotcha.

There is still a coverage tag with props passed in that you may want to reference or maybe include a link to the docs.

And you're saying the I can still run a coverage report with no coverage tag in the xml file, and just move my includes and excludes to my source tag?

[owenvoke]

Yes, coverage will still work without the <coverage> tag, that's just for configuring additional things like path coverage and report paths.