Don't use Microsoft Word if you're making an RMT. It adds all sorts of ugly formatting tags once you C+P it here. If you're on Windows, use the Notepad. If other systems (Mac, Linux, etc.?) have it, use that. It types in plain text. If you don't have Notepad or anything similar, type it in a PM and send it to yourself.
Oh that, that's easily solvable by doing one little thing before CPing it.
See that button in the absolute top left hand corner of the text box with the two "A"s? Press that and it'll switch to "code mode" as I like to call it, and everything you paste into it will come out as plain text. This way you can prepare codes inside your word document and paste it directly in here and have it all format beautifully.