I didn’t add it in this theme since it didn’t show up right on some mobile devices, and smaller browsers.
If I left the code in the portfolio page (it was by mistake) then you should be able to copy the folders from another theme of mine (Epik for example) and add that into the same place. (I’m mentioning that since I know you have a couple other themes of mine) It should all link together once you copy/paste it. Let me know if it doesn’t or if there’s something missing when you try it.