Update install.sh

Author: syrusakbary

install.sh

@@ -211,6 +211,7 @@ initArch() {
     case $ARCH in
         amd64) ARCH="amd64";;
         x86_64) ARCH="amd64";;
+        aarch64) ARCH="arm64";;
         # i386) ARCH="386";;
         *) printf "$red> The system architecture (${ARCH}) is not supported by this installation script.$reset\n"; exit 1;;
     esac