Document the adjustable prefix
Document the adjustable prefix

growingdever/bcrypt,reaperhulk/bcrypt,alex/bcrypt,reaperhulk/bcrypt,alex/bcrypt,pyca/bcrypt,growingdever/bcrypt,reaperhulk/bcrypt,alex/bcrypt,pyca/bcrypt,pyca/bcrypt,reaperhulk/bcrypt,growingdever/bcrypt,pyca/bcrypt