**********SmackDown on WGHP FOX 8, Fridays from 8-10pm…..********** from www.wrestlinginc.com: Gronk is reportedly headed to WrestleMania 36. by Marc Middleton Former NFL player and WWE celebrity friend Rob Gronkowski has signed with WWE and is set to appear at WrestleMania 36 next month, according to The Wrap. The former New England Patriots tight end has now signed a contract with WWE, and will make his official debut during the March 20 episode of SmackDown on FOX from New Orleans. Gronk is also scheduled to appear at WrestleMania 36. It was noted that current plans for the WrestleMania 36 appearance will…