Age calculator on birthday reminders.

I generally don't care much about people ages, but for senior people it becomes something important to know, even if it is only to recognise it.

So now I am including this little link on my birthday reminders, so I can just click on it when the reminder comes and know right away their age.

datetime.io/age/YYYY/M/D

Example:
datetime.io/age/1941/5/22