docs: reformat README tables and restore demo gif embed

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hi-lei

README.md

@@ -26,14 +26,16 @@ VERDA_VERSION=v1.0.0 curl -sSL https://raw.githubusercontent.com/verda-cloud/ver
 
 Download the binary for your platform from [GitHub Releases](https://github.com/verda-cloud/verda-cli/releases):
 
-| Platform | File |
-|----------|------|
+
+| Platform              | File                                |
+| --------------------- | ----------------------------------- |
 | macOS (Apple Silicon) | `verda_VERSION_darwin_arm64.tar.gz` |
-| macOS (Intel) | `verda_VERSION_darwin_amd64.tar.gz` |
-| Linux (x86_64) | `verda_VERSION_linux_amd64.tar.gz` |
-| Linux (ARM64) | `verda_VERSION_linux_arm64.tar.gz` |
-| Windows (x86_64) | `verda_VERSION_windows_amd64.zip` |
-| Windows (ARM64) | `verda_VERSION_windows_arm64.zip` |
+| macOS (Intel)         | `verda_VERSION_darwin_amd64.tar.gz` |
+| Linux (x86_64)        | `verda_VERSION_linux_amd64.tar.gz`  |
+| Linux (ARM64)         | `verda_VERSION_linux_arm64.tar.gz`  |
+| Windows (x86_64)      | `verda_VERSION_windows_amd64.zip`   |
+| Windows (ARM64)       | `verda_VERSION_windows_arm64.zip`   |
+
 
 Extract and move to your PATH:
 
@@ -122,61 +124,75 @@ Other Commands:
 
 ### VM
 
-| Command | Description |
-|---------|-------------|
-| `verda vm create` | Create a VM (interactive wizard or flags) |
-| `verda vm list` | List and inspect VM instances |
+
+| Command           | Description                                |
+| ----------------- | ------------------------------------------ |
+| `verda vm create` | Create a VM (interactive wizard or flags)  |
+| `verda vm list`   | List and inspect VM instances              |
 | `verda vm action` | Start, shutdown, hibernate, or delete a VM |
 
+
 ### Volume
 
-| Command | Description |
-|---------|-------------|
-| `verda volume create` | Create a block storage volume |
-| `verda volume list` | List volumes |
-| `verda volume action` | Detach, rename, resize, clone, or delete |
-| `verda volume trash` | List deleted volumes (restorable within 96h) |
+
+| Command               | Description                                  |
+| --------------------- | -------------------------------------------- |
+| `verda volume create` | Create a block storage volume                |
+| `verda volume list`   | List volumes                                 |
+| `verda volume action` | Detach, rename, resize, clone, or delete     |
+| `verda volume trash`  | List deleted volumes (restorable within 96h) |
+
 
 ### SSH Keys & Startup Scripts
 
-| Command | Description |
-|---------|-------------|
-| `verda ssh-key list / add / delete` | Manage SSH keys |
+
+| Command                                    | Description            |
+| ------------------------------------------ | ---------------------- |
+| `verda ssh-key list / add / delete`        | Manage SSH keys        |
 | `verda startup-script list / add / delete` | Manage startup scripts |
 
+
 ### Settings
 
-| Command | Description |
-|---------|-------------|
-| `verda settings theme` | View or change the color theme |
-| `verda settings theme --select` | Interactive theme picker |
+
+| Command                         | Description                    |
+| ------------------------------- | ------------------------------ |
+| `verda settings theme`          | View or change the color theme |
+| `verda settings theme --select` | Interactive theme picker       |
+
 
 Available themes: `default`, `dracula`, `catppuccin`, `catppuccin-latte`, `nord`, `tokyonight`, `github-light`, `solarized-light`
 
 ### Update
 
-| Command | Description |
-|---------|-------------|
-| `verda update` | Update to the latest version |
+
+| Command                         | Description                                       |
+| ------------------------------- | ------------------------------------------------- |
+| `verda update`                  | Update to the latest version                      |
 | `verda update --version v1.0.0` | Install a specific version (upgrade or downgrade) |
-| `verda update --list` | List available versions |
+| `verda update --list`           | List available versions                           |
+
 
 ### Auth
 
-| Command | Description |
-|---------|-------------|
-| `verda auth login` | Save API credentials (interactive wizard) |
-| `verda auth show` | Show active profile and credentials path |
-| `verda auth use PROFILE` | Switch active auth profile |
+
+| Command                  | Description                               |
+| ------------------------ | ----------------------------------------- |
+| `verda auth login`       | Save API credentials (interactive wizard) |
+| `verda auth show`        | Show active profile and credentials path  |
+| `verda auth use PROFILE` | Switch active auth profile                |
+
 
 ## Global Flags
 
-| Flag | Description |
-|------|-------------|
-| `--debug` | Enable debug output (API request/response details) |
-| `--timeout` | HTTP request timeout (default: 30s) |
-| `--base-url` | Override API base URL |
-| `--config` | Path to config file (default: `~/.verda/config.yaml`) |
+
+| Flag         | Description                                           |
+| ------------ | ----------------------------------------------------- |
+| `--debug`    | Enable debug output (API request/response details)    |
+| `--timeout`  | HTTP request timeout (default: 30s)                   |
+| `--base-url` | Override API base URL                                 |
+| `--config`   | Path to config file (default: `~/.verda/config.yaml`) |
+
 
 ## Configuration