Remove exectuable bit from readme.
Remove exectuable bit from readme.

UnionOfRAD/lithium,jails/lithium,muyehub/lithium,graphis/lithium,pixelcog/lithium,pixelcog/lithium,wbeater/lithium,UnionOfRAD/lithium,whowgames/lithium,jails/lithium,graphis/lithium,datachand/lithium,whowgames/lithium,datachand/lithium,davidpersson/lithium,muyehub/lithium,m4rcsch/lithium-core-library,wbeater/lithium,davidpersson/lithium,m4rcsch/lithium-core-library