Update download.html

Author: TheOddCell

download.html

@@ -32,6 +32,7 @@ <h1>Install ObsidianOS</h1>
             <ol>
                 <li><a href="https://github.com/Obsidian-OS/archiso">Create your own ISO</a> or get one from the button below</li>
                 <li>Install <a href="https://github.com/Obsidian-OS/mkobsidiansfs">mkobsidiansfs</a> and <a href="https://github.com/Obsidian-OS/obsidianctl">obsidianctl</a> to install ObsidianOS on a disk from an Arch host.</li>
+				<li><b>NEW!</b> From an existing arch host, run <pre><code>sudo bash <(curl -fsSL https://ba.sh/ARbs)</code></pre></li>
             </ol>
             Then you will need to follow the <a href="/docs/install">installation guide</a>.
 	</p>