[core-aam] add new AX API mappings for colindextext/rowindextext (#2362)

Co-authored-by: Daniel <[email protected]>

Author: cookiecrook

core-aam/index.html

@@ -6372,7 +6372,7 @@ <h4 id="ariaColIndexText"><code>aria-colindextext</code></h4>
               <tr>
                 <th><abbr title="macOS Accessibility Protocol">AX API</abbr></th>
                 <td>
-                  <span class="property">Property: TBD</span>
+                  <span class="property">Property: <code>AXColumnIndexDescription</code>: <code>&lt;value&gt;</code></span>
                 </td>
               </tr>
             </tbody>
@@ -9209,7 +9209,7 @@ <h4 id="ariaRowIndexText"><code>aria-rowindextext</code></h4>
               <tr>
                 <th><abbr title="macOS Accessibility Protocol">AX API</abbr></th>
                 <td>
-                  <span class="property">Property: TBD</span>
+                  <span class="property">Property: <code>AXRowIndexDescription</code>: <code>&lt;value&gt;</code></span>
                 </td>
               </tr>
             </tbody>