Editoral: fix typo'd data-x-href attributes

Because of this typo, the definition and its uses weren't linked to the external spec. The links are still correct/working:

https://drafts.fxtf.org/geometry/#dom-dompointinit-x
https://drafts.fxtf.org/geometry/#dom-dompointinit-y

Author: foolip

source

@@ -4167,8 +4167,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
          algorithms for <code>DOMMatrix2DInit</code> or <code>DOMMatrixInit</code></li>
 
      <li>The <dfn data-x-href="https://drafts.fxtf.org/geometry/#dictdef-dompointinit"><code>DOMPointInit</code></dfn> dictionary, and associated
-         <dfn data-x="DOMPointInit-x" data-xref="https://drafts.fxtf.org/geometry/#dom-dompointinit-x">x</dfn> and
-         <dfn data-x="DOMPointInit-y" data-xref="https://drafts.fxtf.org/geometry/#dom-dompointinit-y">y</dfn> members</li>
+         <dfn data-x="DOMPointInit-x" data-x-href="https://drafts.fxtf.org/geometry/#dom-dompointinit-x">x</dfn> and
+         <dfn data-x="DOMPointInit-y" data-x-href="https://drafts.fxtf.org/geometry/#dom-dompointinit-y">y</dfn> members</li>
       <li><dfn data-x-href="https://drafts.fxtf.org/geometry/#matrix-multiply">Matrix multiplication</dfn></li>
     </ul>