Make sure you either
A. use Optifine with Video Settings > Quality > Custom Items: ON or
B. install the CIT resewn mod
Install the ressource Pack and rename any Sword to "Master Sword" using an anvil.
Enjoy!
(I can't be bothered to add much here, I made this for my lil bro, just upoading incase anyone wants it)
(I made this for fun, the rights for the visuals and names probably lie with Nintendo, don't sue me pls)