"Perineum" should be aliased to "taint"

Perineum (25) > taint (5118)

Thank you for helping with the tags, i didn’t even know the world taint to be honest XD

I’ve made the alias - there may be some discussion to be had about which one should be the canonical tag, since perineum is technically the “official” term. But, since taint has significantly more images, I’ve made the alias in that direction as requested. If anyone has an objection and thinks “perineum” should be the canonical one instead, feel free to open a discussion thread on it :)