Fixing copyright notice with custom boilerplate

index.bs

@@ -42,6 +42,10 @@ table th.last {
 }
 </style>
 
+<div boilerplate="copyright">
+<a href="http://creativecommons.org/publicdomain/zero/1.0/" rel="license"><img alt="CC0" src="https://licensebuttons.net/p/zero/1.0/80x15.png" width="80" height="15"></a> To the extent possible under law, the editors have waived all copyright and related or neighboring rights to this work. In addition, as of [DATE], the editors have made this specification available under the <a href="https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims" rel="license">Open Web Foundation Agreement Version 1.0</a>, which is available at https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims. Parts of this work may be from another specification document.  If so, those parts are instead covered by the license of that specification document.
+</div>
+
 Introduction {#Introduction}
 =====================
 

index.html

@@ -2044,7 +2044,7 @@
   <div class="head">
    <p data-fill-with="logo"></p>
    <h1 class="p-name no-ref" id="title">RDF Surfaces Primer</h1>
-   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Living Document, <time class="dt-updated" datetime="2024-05-15">15 May 2024</time></span></h2>
+   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Living Document, <time class="dt-updated" datetime="2024-05-16">16 May 2024</time></span></h2>
    <div data-fill-with="spec-metadata">
     <dl>
      <dt>Issue Tracking:
@@ -2055,12 +2055,7 @@ <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span cla
     </dl>
    </div>
    <div data-fill-with="warning"></div>
-   <p class="copyright" data-fill-with="copyright"><a href="http://creativecommons.org/publicdomain/zero/1.0/" rel="license"><img alt="CC0" height="15" src="https://licensebuttons.net/p/zero/1.0/80x15.png" width="80"></a> To the extent possible under law, the editors have waived all copyright
-and related or neighboring rights to this work.
-In addition, as of 15 May 2024,
-the editors have made this specification available under the <a href="http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0" rel="license">Open Web Foundation Agreement Version 1.0</a>,
-which is available at http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0.
-Parts of this work may be from another specification document.  If so, those parts are instead covered by the license of that specification document. </p>
+   <p class="copyright" data-fill-with="copyright"> <a href="http://creativecommons.org/publicdomain/zero/1.0/" rel="license"><img alt="CC0" height="15" src="https://licensebuttons.net/p/zero/1.0/80x15.png" width="80"></a> To the extent possible under law, the editors have waived all copyright and related or neighboring rights to this work. In addition, as of 16 May 2024, the editors have made this specification available under the <a href="https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims" rel="license">Open Web Foundation Agreement Version 1.0</a>, which is available at https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims. Parts of this work may be from another specification document.  If so, those parts are instead covered by the license of that specification document. </p>
    <hr title="Separator for header">
   </div>
   <div class="p-summary" data-fill-with="abstract">