As has been said, if you have a valid marriage certificate from the appropriate Canadian authority then that is all you need. Is there more to this question? Please be aware that if you are to live with your husband in Qatar for any period of time you will have to obtain a residency permit under his sponsorship. Tourist visas run out after a month or two. By the way, my marriage certificate was accepted in Qatar by my husband's employer with just the raised seal, I didn't need any authentication. In the US, our marriage licenses and certificates are issued by the civil authorities, only the venue shows if the marriage was "religious."
Mandi