feat(talosctl): Add completions for talosctl

Signed-off-by: Jonathan Stacks <jonstacks@users.noreply.github.com>

plugins/talosctl/README.md

@@ -0,0 +1,20 @@
+# talosctl plugin
+
+This plugin adds completion for the [talosctl](https://docs.siderolabs.com/talos/v1.12/learn-more/talosctl) CLI for managing [Talos](https://github.com/siderolabs/talos) Linux.
+
+To use it, add `talosctl` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... talosctl)
+```
+
+This plugin does not add any aliases.
+
+## Cache
+
+This plugin caches the completion script and is automatically updated asynchronously when the plugin is
+loaded, which is usually when you start up a new terminal emulator.
+
+The cache is stored at:
+
+- `$ZSH_CACHE/completions/_talosctl` completions script