Added MIL-STD-2525C README
Added MIL-STD-2525C README

tizzybec/military-features-data,Dbarnes1/military-features-data,tizzybec/military-features-data,Esri/military-features-data,Esri/military-features-data,tizzybec/military-features-data,Dbarnes1/military-features-data,Dbarnes1/military-features-data