Riemers 3d tutorials missing files

[killeroid356]

Tutorials 3&4 have missing files, they are declared at the start but whatever links used to be there are no longer working

[SimonDarksideJ]

Wow, I totally missed this issue appearing, thanks for the report @killeroid356 There shouldn't be any "missing" content as I'd managed to get most stuff from Reimers, but I'll double check it's not bad links

OK, I see the issue, episodes 3 & 4 still haven't had the full MonoGame upgrade where all the migration issues get sorted. Just haven't had the tome to circle back and update those two. IN time hopefully it'll get done :S