This PR fixes small errors I discovered in the reactor book.
Furthermore it also fixes the Geiger counter sensor percentage mode (100% being the sum of all neutron maximums of the rods inside the reactor) not taking the coolant into account, only using the base maximum.
Oh I love how GitHub thinks 2 Files got modified, and then proceeds to show me 1 File when I go into the Files Changed Tab. And yes I know it is actually 2 Files, it somehow only showed the Rod changes to me...
This PR fixes small errors I discovered in the reactor book. Furthermore it also fixes the Geiger counter sensor percentage mode (100% being the sum of all neutron maximums of the rods inside the reactor) not taking the coolant into account, only using the base maximum.