Fixed typo which caused compile to fail
Fixed typo which caused compile to fail

In line 228 is a typo which causes make to fail if you give your file the wrong name.

Create "hello_again.vala" in the "src" folder. -> Create "hello-again.vala" in the "src" folder.
elementary/website,wakermahmud/mvp,shockry/mvp,ethan42411/mvp,luiscauro/mvp,learnercys/mvp,jpcarvalho1992/mvp,btkostner/mvp,luiscauro/mvp,LinkBR/mvp,ethan42411/mvp,jgabriellima/mvp,charanrajtc/mvp,ethan42411/mvp,aleksandar-todorovic/mvp,isdampe/mvp,shockry/mvp,charanrajtc/mvp,ericramirez/mvp,hyptos/mvp,arunlodhi/mvp,btkostner/mvp,charanrajtc/mvp,jpcarvalho1992/mvp,elementary/website,luiscauro/mvp,hyptos/mvp,ericramirez/mvp,elementary/mvp,jgabriellima/mvp,Dazag/mvp,sineld/mvp,LinkBR/mvp,isdampe/mvp,elementary/mvp,sineld/mvp,LinkBR/mvp,jgabriellima/mvp,sineld/mvp,elementary/mvp,wakermahmud/mvp,Sesshoumaru404/mvp,jpcarvalho1992/mvp,Sesshoumaru404/mvp,arunlodhi/mvp,Sesshoumaru404/mvp,Dazag/mvp,shockry/mvp,arunlodhi/mvp,hyptos/mvp,learnercys/mvp,learnercys/mvp,aleksandar-todorovic/mvp,Dazag/mvp,isdampe/mvp,elementary/website,aleksandar-todorovic/mvp,btkostner/mvp,ericramirez/mvp,wakermahmud/mvp