set row image and accessory type (p.162-163)

Row Image: leaf_icon.png
Accessory Type: Detail Disclosure Button
put mainTableViewController into navigation controller and set navigation controller to rootViewController (p.206-207)
create AddViewController and ModifyViewController with .xib (p.201-205, 208)

add label UI component 'Add View' and 'Modify View' to .xib (p.208)
when click the left button '+' on navigation bar, goto AddViewController (p.209-213)

1. create left button '+' to navigation bar
2. when click the button, goto AddViewController
when click the item in the table view, goto modifyViewController (p.214-215)

* implement tableView:didSelectRowAtIndexPath: method