Added missing @param to dd() method on Collection
Added missing @param to dd() method on Collection

Added missing `@param` to `dd()`'s docblock on `Collection`

This is such a minor thing it almost seems pointless to do a pull request.

halaei/framework,samlev/framework,lucasmichot/framework,srmkliveforks/framework,srmkliveforks/framework,lucasmichot/framework,srmkliveforks/framework,tjbp/framework,barryvdh/framework,halaei/framework,cybercog/framework,dwightwatson/framework,stidges/framework,rodrigopedra/framework,ChristopheB/framework,morrislaptop/framework,gms8994/framework,cviebrock/framework,barryvdh/framework,mul14/laravel-framework,morrislaptop/framework,cviebrock/framework,tomschlick/framework,rodrigopedra/framework,jerguslejko/framework,jerguslejko/framework,mul14/laravel-framework,notebowl/laravel-framework,ChristopheB/framework,halaei/framework,stidges/framework,bytestream/framework,cviebrock/framework,bytestream/framework,hafezdivandari/framework,JosephSilber/framework,vlakoff/framework,JosephSilber/framework,crynobone/framework,gms8994/framework,barryvdh/framework,JamesForks/framework,driesvints/framework,ChristopheB/framework,rodrigopedra/framework,vlakoff/framework,tomschlick/framework,tjbp/framework,stidges/framework,cybercog/framework,laravel/framework,mul14/laravel-framework,arturock/framework,stidges/framework,crynobone/framework,laravel/framework,cybercog/framework,stevebauman/framework,gms8994/framework,leo108/laravel_framework,dwightwatson/framework,arturock/framework,vlakoff/framework,jerguslejko/framework,tjbp/framework,stevebauman/framework,gms8994/framework,arturock/framework,cviebrock/framework,JamesForks/framework,samlev/framework,tomschlick/framework,srmkliveforks/framework,leo108/laravel_framework,jerguslejko/framework,mul14/laravel-framework,barryvdh/framework,driesvints/framework,notebowl/laravel-framework,hafezdivandari/framework,rodrigopedra/framework