Fix broken VIPER magazine link
Fix broken VIPER magazine link

Mattmik moved the location of the VIPER magazine files from downloads/viper to files/viper
JohnEarnest/Octo,james0x0A/Octo,JohnEarnest/Octo,james0x0A/Octo,JohnEarnest/Octo,JohnEarnest/Octo,JohnEarnest/Octo