Naked or White Clean Linen Salvation?

In the beginning, God created Adam and Eve naked and they were not ashamed. They sinned and noticed they were naked and ashamed. In the end, John in Revelation 19:8 warns us about the righteous deeds that are required of us to be properly clothed in white clean garments. "...his Bride has prepared herself - fine linen, bright and clean has been given her to wear. (“Fine linen” means the righteous deeds of God’s people.)" What does this mean? What righteous deeds do we need to do to be given these garments?