Update iventoy-install.sh

create `data` and `iso` directories.

install/iventoy-install.sh

@@ -21,7 +21,7 @@ msg_ok "Installed Dependencies"
 
 RELEASE=$(curl -s https://api.github.com/repos/ventoy/pxe/releases/latest | grep "tag_name" | awk '{print substr($2, 3, length($2)-4) }')
 msg_info "Installing iVentoy v${RELEASE}"
-mkdir -p /opt/iventoy/
+mkdir -p /opt/iventoy/{data,iso}
 wget -q https://github.com/ventoy/PXE/releases/download/v${RELEASE}/iventoy-${RELEASE}-linux-free.tar.gz
 tar -C /tmp -xzf iventoy*.tar.gz
 mv /tmp/iventoy*/* /opt/iventoy/