docs: add npm 11 approve-scripts step to install instructions

npm 11+ gates lifecycle scripts (postinstall, postuninstall)
behind explicit user approval. Until 'npm approve-scripts
@gilbertwong1996/ado' is run, the postinstall hook that
auto-installs shell completion is silently skipped and users
see a warning instead.

Update both README.md and github-page/index.html to include
the one-time approval command in the npm install path.

Author: gilbertwong96

README.md

@@ -46,16 +46,38 @@ so they load natively on startup.
 
 ## Installation
 
+### npm (recommended)
+
 ```bash
-git clone https://github.com/gilbertwong96/ado_cli.git
-cd ado_cli
-mix deps.get
-mix escript.build
+npm install -g @gilbertwong1996/ado
+npm approve-scripts @gilbertwong1996/ado      # npm 11+: allow the postinstall to auto-install shell completion
 ```
 
-Move the escript into your PATH:
+> **npm 11+ note**: newer npm versions gate lifecycle scripts behind explicit
+> approval. Run the second command above once — the postinstall will then
+> auto-install shell completion on every `npm install -g` afterward.
+
+### Pre-built binaries
+
+Download the binary for your platform from the
+[latest release](https://github.com/gilbertwong96/ado_cli/releases/latest) and
+put it on your `$PATH`:
 
 ```bash
+# Example for Apple Silicon Mac (pick the right binary for your platform)
+curl -L -o ado https://github.com/gilbertwong96/ado_cli/releases/latest/download/ado-0.2.1-macos-aarch64
+chmod +x ado && sudo mv ado /usr/local/bin/
+```
+
+### From source
+
+Requires Elixir 1.20+ and Mix:
+
+```bash
+git clone https://github.com/gilbertwong96/ado_cli.git
+cd ado_cli
+mix deps.get
+mix escript.build
 cp ado /usr/local/bin/
 ```
 

github-page/index.html

@@ -38,7 +38,8 @@ <h1>The Azure DevOps CLI<br>for humans <em>and</em> LLM agents</h1>
       <div class="install-row install-row-hero">
         <div class="install-cmd">
           <span class="label">npm <span class="recommended-pill">recommended</span></span>
-          <pre><code>npm install -g @gilbertwong1996/ado</code></pre>
+          <pre><code>npm install -g @gilbertwong1996/ado
+npm approve-scripts @gilbertwong1996/ado  # npm 11+ one-time setup</code></pre>
         </div>
       </div>
       <p class="hero-hint">Works on macOS, Linux, and Windows. <a href="#install">Other install methods →</a></p>