SUPPLEMENT TO PRELIMINARY LIMITED OFFERING MEMORANDUM relating to $11,720,000* CALIFORNIA SCHOOL FINANCE AUTHORITY CHARTER SCHOOL REVENUE BONDS (GIRLS ATHLETIC LEADERSHIP SCHOOL LOS ANGELES PROJECT) SERIES 2021A $590,000* CALIFORNIA SCHOOL FINANCE AUTHORITY CHARTER SCHOOL REVENUE BONDS (GIRLS ATHLETIC LEADERSHIP SCHOOL LOS ANGELES PROJECT) (TAXABLE) SERIES 2021B SUPPLEMENT TO PLOM POSTED 9-20-21