Added documentation for the reactor IBD generator to generators.rst
Added documentation for the reactor IBD generator to generators.rst

BenLand100/rat-pac,mastbaum/rat-pac,BenLand100/rat-pac,BenLand100/rat-pac,BenLand100/rat-pac,mastbaum/rat-pac,mastbaum/rat-pac,mastbaum/rat-pac,mastbaum/rat-pac,BenLand100/rat-pac