Fix proxmox scripts link

Author: hywax

docs/third-party/README.md

@@ -7,7 +7,7 @@ Known integrations:
 
 - [HomeAssistant Hass.io plugin](https://github.com/hassio-addons/addon-nginx-proxy-manager)
 - [UnRaid / Synology](https://github.com/jlesage/docker-nginx-proxy-manager)
-- [Proxmox Scripts](https://github.com/ej52/proxmox-scripts/tree/main/lxc/nginx-proxy-manager)
+- [Proxmox Scripts](https://github.com/ej52/proxmox-scripts/tree/main/apps/nginx-proxy-manager)
 - [nginxproxymanagerGraf](https://github.com/ma-karai/nginxproxymanagerGraf)