SMP-install guide

[Marvin_The_Martian]

No need to delete them! Just let them be, it will run the config on it's own even I think since I didn't run -config it just detected it had some config info missing but that I am not sure of 100%.

Edit: but do not do this while working on a wu, run the client with -oneunit and then upgrade when done. And you still need to make your own shortcut or edit the existing one. This will also only work if you already have deino or mpi installed and want to keep using what you got.