Fix type annotation in sample code for Decode.dict
Fix type annotation in sample code for Decode.dict

martinos/core,vilterp/core,Dandandan/core,suryagaddipati/core,colinmccabe/core,ThomasWeiser/core,colinmccabe/core,simonh1000/core,isaacsanders/core,alexiamcdonald/elm-core,suryagaddipati/core,simonh1000/core,Dandandan/core,bradurani/core,eeue56/core,Pisys/core,ThomasWeiser/core,eeue56/core,isaacsanders/core,Pisys/core,rgrempel/core,rgrempel/core,alexiamcdonald/elm-core,laszlopandy/core,rick68/core,laszlopandy/core,bradurani/core,vilterp/core,rick68/core,martinos/core