=> and -> highlighting support #4
Description
One other comment about the package: it would be nice if you could quickly add => and -> to the highlighting in some way so that they stand out like keywords (of a different color) before pushing a new version. Type signatures and cases look very monotonous compared to Sublime Text's SML highlighting right now.
I'm not sold on highlighting -> and =>. In a lot of places where I have read SML code online, the -> and => are not highlighted. I don't actively write SML anymore; so if the people that use this package show support for this issue we will make it happen.