Update schwab 2fa instructions (#3288)
Update schwab 2fa instructions (#3288)

* Update schwab 2fa instructions

There is a faster and more straightforward way to set it up now.

* Removing last paragraph according to #4038

vgarmash/twofactorauth,jdavis/twofactorauth,Jawshy/twofactorauth,vgarmash/twofactorauth,Jawshy/twofactorauth,rj175/twofactorauth,Jawshy/twofactorauth,jdavis/twofactorauth,rj175/twofactorauth,Jawshy/twofactorauth,rj175/twofactorauth,vgarmash/twofactorauth,jdavis/twofactorauth