Hi
Okey in submission of your application would be all together in one envelope , meaning your wife supporting documents as a (sponsor). And yours as a principal applicant.
Gather all your documents to proof your relationship is genuine. After get your mc at nso, you have to get advisory of marriage as well. Your identification, your police certificate if went to other countries more than 6 months.birth certificate,.
Does your wife knows what she going to prepare? Or you can visit cic website for more info. May check list po at mga guide what to do first.