It would have been easier if you filed your I-485 with your married name. Maybe you can ask for your name to be changed when you appear at the interview. If they do not agree, then you could file an I-90 with proof of your legal name change to seek a replacement green card. Or you could try filing the condition removal petition with the married name. If all else fails, you can seek a legal name change as part of the naturalization process (or of course in a state court before then).