public_html: Fix displaying the CPU Model

roles/public_html/templates/generate-public_html.j2

@@ -37,7 +37,7 @@ cat >${target}.tmp <<END
       <div id="content-left">
         <div id="intro" class="box">
           <h2>Build server</h2>
-          <p>This is an {{ ansible_processor[1] }} server with {{ ansible_memtotal_mb }} MB of memory.</p>
+          <p>This is an {{ ansible_processor[2] }} server with {{ ansible_memtotal_mb }} MB of memory.</p>
           <p>
             This machine is meant for building packages for Arch Linux distribution.
             The server is paid from donations and is available to all Trusted Users and Developers.