update svg row

reference svg aam and `role=graphics-document`
allow any role on svg

closes #261
closes #158

index.html

@@ -2425,14 +2425,12 @@ <h2 id="docconformance">
               <a data-cite="html/embedded-content-other.html#svg-0">`SVG`</a>
             </td>
             <td>
-              <a>No corresponding role</a>
+              `role=graphics-document` as defined by
+              <a data-cite="svg-aam-1.0/#details-id-66">SVG AAM</a>
             </td>
             <td>
               <p>
-                Roles:
-                <a href="#index-aria-application">`application`</a>,
-                <a href="#index-aria-document">`document`</a>
-                or <a href="#index-aria-img">`img`</a>
+                <strong><a>Any Role</a></strong>
               </p>
               <p>
                 <a href="#index-aria-global">Global `aria-*` attributes</a> and
@@ -4963,11 +4961,11 @@ <h2>
              <a data-cite="html/dom.html#interactive-content-2">interactive content</a>
             </td>
             <td>
-            
+
              <a data-cite="html/dom.html#phrasing-content">Phrasing content</a>, but
               with no <a data-cite="html/dom.html#interactive-content-2">interactive content</a>
               descendants.
-           
+
             </td>
           </tr>
           <tr>