Slightly improve documentation
Slightly improve documentation

alexiamcdonald/elm-core,rgrempel/core,martinos/core,deadfoxygrandpa/core,suryagaddipati/core,slava-sh/core,avh4/elm-lang-core,avh4/elm-lang-core,vilterp/core,eeue56/core,isaacsanders/core,bradurani/core,ThomasWeiser/core,rgrempel/core,Pisys/core,Pisys/core,laszlopandy/core,alexiamcdonald/elm-core,rick68/core,colinmccabe/core,maxsnew/core,manleyjster/core,manleyjster/core,vilterp/core,krisajenkins/core,simonh1000/core,laszlopandy/core,suryagaddipati/core,eeue56/core,ThomasWeiser/core,colinmccabe/core,krisajenkins/core,Dandandan/core,deadfoxygrandpa/core,martinos/core,bradurani/core,isaacsanders/core,Dandandan/core,rick68/core,simonh1000/core