What component values should I use in a Basic Low Voltage Regulator usinga LM723 for a 5 volt output?

Im currently an electronics student at a college, and I have a project due soon. I saw a Basic Low voltage regulator using an LM723 and I decided I wanted to use that to get a 5 v output for my circuit so that a cell phone could be connected in series with the output and provide a charge for the phone. However, I'm not to sure what resistor and capacitor values I can use to get the output I desire. Any help would be appreciated. THe battery itself takes 3.7 v, and this would be my backup should this initial project fail. Thank you.