Settings : Add tap/pay help url

Change-Id: I41f37dff0fa2eb547f84aaf776950f0f42e6e36f
SuperSU header
[2/2] Profile: Remove screen lock mode
[2/2] Profile: Screen timeout
[2/2] Battery light: Add 100% charged level
[2/2] Buttons: Switch to last app
[2/2] Quick pulldown: center
[2/2] Smart pulldown
[2/2] Volume panel timeout
[2/2] Global actions: Mobile data
[2/2] Global actions: Wifi
[2/2] NavBar: Enable with s-pen
[2/2] Low battery warning policy
[2/2] Network traffic indicator
[2/2] Floating window
[2/2] Lockscreen notifications
[2/2] Slim Recents