Better GitHub badge SVG semantics

Author: ericwbailey

partials/section.project-link.hbs

@@ -1,8 +1,8 @@
 <aside id="section__project-link" aria-labelledby="title__project"><!-- Start of #section__project-link -->
     <a href="https://github.com/ericwbailey/accessible-html-content-patterns">
-        <svg xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 250 250" fill="#ffffff" style="position: absolute; top: 0; right: 0">
-            <title id="title__project" style="border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px;">View project repository on GitHub</title>
-            <desc style="border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px;">A ribbon banner featuring a silhouette of GitHub's logo, the Octocat.</desc>
+        <svg aria-labelledby="project__title project__description" xmlns="http://www.w3.org/2000/svg" width="80" height="80" viewBox="0 0 250 250" fill="#ffffff" role="img" style="position: absolute; top: 0; right: 0">
+            <title id="project__title" style="border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px;">View project repository on GitHub</title>
+            <!--[if !IE]> --><desc id="project__description" style="border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px;">A ribbon banner featuring a silhouette of GitHub's logo, the Octocat.</desc><!-- <![endif]-->
             <path d="M0 0l115 115h15l12 27 108 108V0z" fill="#000000"/>
             <path class="octo-arm" d="M128 109c-15-9-9-19-9-19 3-7 2-11 2-11-1-7 3-2 3-2 4 5 2 11 2 11-3 10 5 15 9 16" style="-webkit-transform-origin: 130px 106px; transform-origin: 130px 106px"/>
             <path class="octo-body" d="M115 115s4 2 5 0l14-14c3-2 6-3 8-3-8-11-15-24 2-41 5-5 10-7 16-7 1-2 3-7 12-11 0 0 5 3 7 16 4 2 8 5 12 9s7 8 9 12c14 3 17 7 17 7-4 8-9 11-11 11 0 6-2 11-7 16-16 16-30 10-41 2 0 3-1 7-5 11l-12 11c-1 1 1 5 1 5z"/>