docs(pages): update curl example to v0.2.1

The GitHub Pages index.html was still showing the v0.2.0 binary
in the 'Download binary' example. Bump to 0.2.1 to match the
current release.

Will go live on the next 'Deploy GitHub Pages' CI run.

Author: gilbertwong96

github-page/index.html

@@ -227,9 +227,9 @@ <h2>Other install methods</h2>
         <div class="card">
           <h3>📥 Download binary</h3>
           <p>Grab the platform-specific binary and put it on your <code>$PATH</code>.</p>
-          <pre><code>curl -L -o ado https://github.com/gilbertwong96/ado_cli/releases/latest/download/ado-0.2.0-macos-aarch64
+          <pre><code>curl -L -o ado https://github.com/gilbertwong96/ado_cli/releases/latest/download/ado-0.2.1-macos-aarch64
 chmod +x ado &amp;&amp; sudo mv ado /usr/local/bin/</code></pre>
-          <p class="hint">Replace <code>ado-0.2.0-macos-aarch64</code> with the binary for your platform (see the <a href="https://github.com/gilbertwong96/ado_cli/releases/latest">release page</a>).</p>
+          <p class="hint">Replace <code>ado-0.2.1-macos-aarch64</code> with the binary for your platform (see the <a href="https://github.com/gilbertwong96/ado_cli/releases/latest">release page</a>).</p>
         </div>
         <div class="card">
           <h3>🔨 Build from source</h3>