[Remind-Fans] every other Saturday

[Dave]

Hi Remind-Fans,

I used remind and like it a lot, but I only use very basic functionality 
of the program (currently).  Although I've read a lot of the manpage, 
I'm still not sure how to create a rule I want, which is a calendar 
entry for "every other Saturday".  Can anyone please provide an example 
for that?

Thanks!
Dave