F# (FSharp) Syntax Highlighting

I would love to have F# highlighting in code blocks/files.

If I would (not sure if I can) go about and add this to GitLab, how would that look like? Is there anyone else who would like to have F# highlighting too?

UserVoice: http://feedback.gitlab.com/forums/176466-general/suggestions/8848351-add-f-syntax-highlighting