Example in README.md doesn't work

[astrale-sharp]

hey there ! beautiful project <3

In the read me you put this code

module Example exposing (..)

import Browser
import Bulma.CDN exposing (..)
import Bulma.Modifiers exposing (..)
import Bulma.Elements exposing (..)
import Bulma.Columns exposing (..)
import Bulma.Layout exposing (..)
import Html exposing ( Html, main_, text )

type alias Model = {}

main : Program () Model Msg
main
  = Browser.sandbox
    { init = {}
    , view = view
    , update = \msg -> \model -> model
    }

view : Model -> Html msg
view model 
  = main_ []
    [ stylesheet
    , exampleHero
    , exampleColumns
    ]

exampleHero : Html msg
exampleHero 
  = hero { heroModifiers | size = Medium, color = Primary } []
    [ heroBody []
      [ container []
          [ title H1 [] [ text "Hero Title" ]
          , title H2 [] [ text "Hero Subtitle" ]
          ]
      ]
    ]

exampleColumns : Html msg
exampleColumns 
  = section NotSpaced []
    [ container []
      [ columns columnsModifiers []
        [ column columnModifiers [] [ text "First Column" ]
        , column columnModifiers [] [ text "Second Column" ]
        , column columnModifiers [] [ text "Third Column" ]
        ]
      ]
    ]

elm complains that at line 13 main : Program () Model Msg Msg is not defined
Im a beginner at elm so i can't help ^^'

[joncol]

Note that this can be fixed by lower-casing Msg so that the line instead says:
main : Program () Model msg