Moved documentation for the Concat operator behavior into the remarks section to be consistent with the rest of the codebase.
Moved documentation for the Concat operator behavior into the remarks section to be consistent with the rest of the codebase.

morelinq/MoreLINQ,ddpruitt/morelinq,Agbar/MoreLINQ,ddpruitt/morelinq,Agbar/MoreLINQ,fsateler/MoreLINQ,fsateler/MoreLINQ,morelinq/MoreLINQ,smzinovyev/MoreLINQ