Added missing XML code comments.
Added missing XML code comments.

NEventStore/NEventStore,adamfur/NEventStore,deltatre-webplu/NEventStore,chris-evans/NEventStore,paritoshmmmec/NEventStore,nerdamigo/NEventStore,jamiegaines/NEventStore,marcoaoteixeira/NEventStore,gael-ltd/NEventStore,D3-LucaPiombino/NEventStore,AGiorgetti/NEventStore