Fix typo
Fix typo

`mutliple` -> `multiple`
rails/jbuilder,ASnow/jbuilder,vincentwoo/jbuilder,nambrot/jbuilder,WellframeInc/jbuilder,maclover7/jbuilder,jasnow/jbuilder,sue445/jbuilder,suryasnath/Venture,odedniv/jbuilder