The UK has a process of naturalisation which allows non-British nationals, born outside the UK to obtain British citizenship. The process for naturalisation has different requirements for individuals who have a British spouse. The UK government has produced guidance on this matter, which I will link below, please note this is not exhaustive. https://www.gov.uk/apply-citizenship-spouse

I suggest you review the guidance in order to determine if you and your wife are eligible for the process and if you can provide the relevant supporting documents.