Update vscode.md

adds info about nix-ld

Author: tesar-tech

docs/src/how-to/vscode.md

@@ -20,14 +20,15 @@ allowing foreign binaries to run on NixOS.
 
 Running the VSCode server on NixOS-WSL requires using nix-ld 2.0 which is as of writing only on NixOS unstable or [nix-ld-rs](https://github.com/nix-community/nix-ld-rs) on NixOS 24.05.
 
-To set it up, add the following to your configuration:
+To set it up, add the following to your system configuration:
 
 ```nix
 programs.nix-ld = {
     enable = true;
     package = pkgs.nix-ld-rs; # only for NixOS 24.05
 };
 ```
+Note: If you are using Home Manager, you still need to set this up in `configuration.nix`. 
 
 ## Option 2: Patch the server