Update Section 3 of the Documents

https://piggybankdao-1.gitbook.io/piggybankdao-doc/#how-can-i-benefit-from-olympus

"while minters provide LP tokens or "BUSD" tokens in exchange for discounted PB tokens after a fixed vesting period."

BUSD should be replaced by MIM ,WBTC or some other combination.

Purpose: Trust. Shows projects attention to detail.