force Files to downloaded in a Gmod server

Hello, I need help with this, I cant seem to figure out how to make people download addons that are on my server.

Type this in a init.lua file in addons/Fast_DL_Init/autorun/server
resource.AddSingleFile(“models/folder/prophere.vtx”)

And just put that for every file that the ADDON has, MAKE SURE you put the file’s in a FASTDL or in the Models/materials/sound and all that stuff.