docs: update readme (auto)

release: module update from ifthenpay/dev_whmcs_8 (ifthenpay/dev_whmc…

…s_8@7e5d441)

release: module update from ifthenpay/dev_whmcs_8 (ifthenpay/dev_whmc…

…s_8@1a1f2a6)

fix bug in mail utility

fix bug in mbwayResendNotification, fix bug in updatePaymentReturnFac…

…tory

fix bug in mailUtility class, fix bug in router, fix bug in configFor…

…ms, fixe bug in server endpoints

add dynamic multibanco references, add check payment status when call…

…back fail, add cancel order on payshop, multibanco and credit card, add callback to credit card

fix bug in mbway payments

Merge branch 'main' of https://github.com/ifthenpay/WHMCS into main

delete ifthenpay.zip