Track Windows Terminal settings in the repo

- windows/windows-terminal/settings.json: Australis scheme, VictorMono
  Nerd Font Mono, acrylic on the PowerShell profile
- link-dotfiles.ps1: link it into the Terminal LocalState folder
- README: document the windows/ folder and Terminal setup

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

README.md

@@ -6,6 +6,7 @@ Personal dotfiles. Configs are organized by where they get linked:
 | -------------- | ------------ | --------------------------------- |
 | `home_root`    | `~`          | `.zshrc`, `.wezterm.lua`, `.nanorc` |
 | `home_config`  | `~/.config`  | `nvim`, `ohmyposh`, `zellij`, `ghostty` |
+| `windows`      | Windows-only | `windows-terminal/settings.json`  |
 | `lk-installers`| n/a          | helper scripts to install tooling |
 
 ## Linux / macOS (GNU stow)
@@ -35,6 +36,15 @@ pwsh -File .\link-dotfiles.ps1
 The repo stays the source of truth — edit files under `home_root` /
 `home_config` and the linked locations update live.
 
+### Windows Terminal
+
+`windows/windows-terminal/settings.json` is linked into the Terminal package
+folder (`...\Microsoft.WindowsTerminal_*\LocalState\settings.json`) by
+`link-dotfiles.ps1`. Because it's linked, changes you make in the Terminal UI
+write straight back into this repo. The settings include the **Australis**
+color scheme and the **VictorMono Nerd Font Mono** profile font; install the
+font (see below) so glyphs render.
+
 ## Installers
 
 | Script                          | Platform | Purpose            |