Manjaro not listed in Grub, only Win 10

I left free space on the hdd for Manjaro, after installing Win 10. I guess i assumed that the installer’s disk utility would automatically partition that free space with what is necessary. Perhaps I can edit Grub to include Manjaro, or add a uefi partition if needed? I’m not sure which is the cause of the problem, maybe both?
Pretty sure editing Grub or partitioning for an uefi partition will do the trick. What would you all suggest?