Elaine Low Senior TV WriterIt’s happening.Following an uproarious social media push to have “Reading Rainbow” and “Star Trek” star LeVar Burton take the hosting podium on “Jeopardy!”, the actor has been announced as part of the final group of guest hosts who will round out the show’s 37th season in the wake of the death of beloved “Jeopardy!” host Alex Trebek last November.“Our goal has been to present a wide variety of guest hosts with different skill sets and backgrounds on our path to