Write Mastercard with lowercase c
Write Mastercard with lowercase c

#26 updated the Mastercard logo with the new colours, but the name with lowercase c is also part of the new branding
activemerchant/payment_icons,PayFast/payment_icons,Sanjeev-Gupta/payment_icons,PayFast/payment_icons,Sanjeev-Gupta/payment_icons,activemerchant/payment_icons,activemerchant/payment_icons