In your Roaming folder there is another folder for the coin called MelaniaCoin, go into that folder, create a new text document in there and copy and paste the nodes into it, save it as melaniacoin.conf (Make sure you save it as All Files and not text)

If you are on a Linux System then use ctrl+h in your local directory to find the coin folder (It should say .melaniacoin as the folder name) and proceed to do the same as the rest.

Start your wallet up and you will be good.