Added a missing XML doc entry.
Added a missing XML doc entry.

Gallio/mbunit-v3,ajayanandgit/mbunit-v3,ajayanandgit/mbunit-v3,Gallio/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3,mterwoord/mbunit-v3,xJom/mbunit-v3,ajayanandgit/mbunit-v3,xJom/mbunit-v3,mterwoord/mbunit-v3,ajayanandgit/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3,Gallio/mbunit-v3,Gallio/mbunit-v3,xJom/mbunit-v3,xJom/mbunit-v3,mterwoord/mbunit-v3,xJom/mbunit-v3,ajayanandgit/mbunit-v3,xJom/mbunit-v3,ajayanandgit/mbunit-v3,mterwoord/mbunit-v3,Gallio/mbunit-v3