new 2023 W3C copyright text

Author: davidcarlisle

docs/index.html

@@ -28,7 +28,7 @@ <h2><a id="w3c-doctype"></a>Editors Draft 03 January 2023</h2><dl>
 <dt>Previous versions:</dt><dd><a href="https://www.w3.org/TR/2014/REC-xml-entity-names-20140410/">https://www.w3.org/TR/2014/REC-xml-entity-names-20140410/</a><br>
 <a href="https://www.w3.org/TR/2010/REC-xml-entity-names-20100401/">https://www.w3.org/TR/2010/REC-xml-entity-names-20100401/</a></dd><dt>
 Editors' version:</dt><dd><a href="https://w3c.github.io/xml-entities/">https://w3c.github.io/xml-entities/</a></dd><dt>Editors:</dt><dd>David Carlisle, NAG</dd><dd>Patrick Ion, Mathematical Reviews, American Mathematical Society</dd></dl><p>Please refer to the <a href="errata.html"><strong>errata</strong></a>
-for this document, which may include some normative corrections.</p><p>See also <a href="https://www.w3.org/2005/11/Translations/Query?titleMatch=XML+Entity+definitions+for+Characters"><strong>translations</strong></a>.</p><p class="copyright"><a href="https://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> &#xa9; 1998-2023 <a href="https://www.w3.org/">World Wide Web Consortium</a>. <abbr title="World Wide Web Consortium">W3C</abbr><sup>&#xae;</sup><a href="https://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>, <a href="https://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and <a href="https://www.w3.org/Consortium/Legal/copyright-documents">document use</a> rules apply.</p><hr title="Separator for header"></div><div>
+for this document, which may include some normative corrections.</p><p>See also <a href="https://www.w3.org/2005/11/Translations/Query?titleMatch=XML+Entity+definitions+for+Characters"><strong>translations</strong></a>.</p><p class="copyright"><a href="https://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> &#xa9; 1998-2023 <a href="https://www.w3.org/">World Wide Web Consortium</a>. <abbr title="World Wide Web Consortium">W3C</abbr><sup>&#xae;</sup><a href="https://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>, <a href="https://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and <a href="https://www.w3.org/Consortium/Legal/copyright-software">permissive document license</a> rules apply.</p><hr title="Separator for header"></div><div>
 <h2><a id="abstract"></a>Abstract</h2>
 <p>
 This document defines several sets of names, so that to each name is assigned