Added a bit more XML documentation.
Added a bit more XML documentation.

sergeyshushlyapin/AutoFixture,AutoFixture/AutoFixture,dlongest/AutoFixture,mrinaldi/AutoFixture,adamchester/AutoFixture,olegsych/AutoFixture,dcastro/AutoFixture,zvirja/AutoFixture,yuva2achieve/AutoFixture,yuva2achieve/AutoFixture,dlongest/AutoFixture,StevenJiang2015/AutoFixture,olegsych/AutoFixture,amarant/AutoFixture,adamchester/AutoFixture,sbrockway/AutoFixture,sergeyshushlyapin/AutoFixture,mrinaldi/AutoFixture,hackle/AutoFixture,Pvlerick/AutoFixture,sbrockway/AutoFixture,hackle/AutoFixture,dcastro/AutoFixture,StevenJiang2015/AutoFixture,amarant/AutoFixture,sean-gilliam/AutoFixture