Add the automated install / run method for the WSL image to the Download page

Author: Antiz96

templates/public/download.html

@@ -95,7 +95,11 @@ <h3>VM images</h3>
 
     <h3>WSL images</h3>
 
-    <p>Official WSL images are available for download on <a href="https://geo.mirror.pkgbuild.com/wsl/latest">mirrors</a>, more information is available in the <a href="https://wiki.archlinux.org/title/Install_Arch_Linux_on_WSL">Wiki</a>.</p>
+    <p>The official WSL image can be installed with the following command (in a PowerShell prompt from a Windows system with WSL 2 installed):</p>
+    <code>wsl --install archlinux</code>
+
+    <p>It is also available for download on <a href="https://geo.mirror.pkgbuild.com/wsl/latest">mirrors</a>.</p>
+    <p>More information available in the <a href="https://wiki.archlinux.org/title/Install_Arch_Linux_on_WSL">Wiki</a>.</p>
 
     <h3 id="http-downloads">HTTP Direct Downloads</h3>