Fixing `composer.json` syntax.
Fixing `composer.json` syntax.

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