Typo fix in GTK+ common questions
Typo fix in GTK+ common questions

https://bugzilla.gnome.org/show_bug.cgi?id=732433

ahodesuka/gtk,grubersjoe/adwaita,alexlarsson/gtk,jessevdk/gtk,Lyude/gtk-,jessevdk/gtk,jadahl/gtk,jigpu/gtk,jadahl/gtk,Lyude/gtk-,alexlarsson/gtk,Lyude/gtk-,jadahl/gtk,ahodesuka/gtk,alexlarsson/gtk,Adamovskiy/gtk,davidgumberg/gtk,ahodesuka/gtk,ahodesuka/gtk,Adamovskiy/gtk,jadahl/gtk,jessevdk/gtk,davidgumberg/gtk,Adamovskiy/gtk,Lyude/gtk-,Lyude/gtk-,ahodesuka/gtk,davidgumberg/gtk,chergert/gtk,jigpu/gtk,Adamovskiy/gtk,jessevdk/gtk,grubersjoe/adwaita,Lyude/gtk-,alexlarsson/gtk,Adamovskiy/gtk,grubersjoe/adwaita,jigpu/gtk,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,jigpu/gtk,alexlarsson/gtk,chergert/gtk,ahodesuka/gtk,alexlarsson/gtk,davidgumberg/gtk,jigpu/gtk,jadahl/gtk,chergert/gtk,Adamovskiy/gtk,davidgumberg/gtk,jigpu/gtk,chergert/gtk,Lyude/gtk-,jessevdk/gtk,chergert/gtk,davidgumberg/gtk,ahodesuka/gtk,jessevdk/gtk,chergert/gtk,jigpu/gtk,davidgumberg/gtk,ahodesuka/gtk,Adamovskiy/gtk,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,Lyude/gtk-,alexlarsson/gtk,davidgumberg/gtk,grubersjoe/adwaita,jessevdk/gtk,alexlarsson/gtk,jadahl/gtk,chergert/gtk,jadahl/gtk,jadahl/gtk,Adamovskiy/gtk