feat: update docs

Author: LukeGus

docs/install.md

@@ -6,7 +6,7 @@ Choose the installation method that works best for your platform and use case.
 
 For running the required Termix backend and web-app front end:
 
-- **[Docker](./install/server/docker.md)** - The simplest way to get Termix server up and running with Docker.
+- **[Docker](./install/server/docker.mdx)** - The simplest way to get Termix server up and running with Docker.
 - **[Manual](./install/server/manual.md)** - Build and compile Termix from source code for custom deployments.
 - **[Proxmox](./install/server/proxmox.md)** - Install to Proxmox as a container via Proxmox VE Helper-Scripts .