The first "Green Card" received will be a temporary card that makes your Spouse a Conditional Permanent Resident of the United States. She must file an application to remove the "Conditional" status during a 90-day period prior to the two-year anniversary of the issuance of the Conditional Green Card.
Once she received her permanent resident "Green Card" (which is valid for ten years), she must still apply for naturalization if she wants to become a U.S. citizen. She can do this:
