Remote note based on IANA registry discussion (#255)

SHA: 75dc061
Reason: push, by stephenmcgruer

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

spec.html

@@ -4,9 +4,9 @@
   <meta content="width=device-width, initial-scale=1, shrink-to-fit=no" name="viewport">
   <title>Secure Payment Confirmation</title>
   <meta content="w3c/ED" name="w3c-status">
-  <meta content="Bikeshed version 516eaf3cf, updated Tue Jun 20 13:48:28 2023 -0700" name="generator">
+  <meta content="Bikeshed version d29f71adb, updated Wed Jul 19 11:08:56 2023 -0700" name="generator">
   <link href="https://www.w3.org/TR/secure-payment-confirmation/" rel="canonical">
-  <meta content="200fb6114b5b957f1d7654ec7ccceaa4ce71f49a" name="document-revision">
+  <meta content="75dc0616da54befe67f82c9f90649e78828a450b" name="document-revision">
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {
     color: var(--a-normal-text);
@@ -513,7 +513,7 @@
 .heading > a.self-link::before { content: "§"; }
 dfn > a.self-link::before      { content: "#"; }
 </style>
-<style>/* Boilerplate: style-style-syntax-highlighting */
+<style>/* Boilerplate: style-syntax-highlighting */
 
             pre.idl.highlight {
                 background: var(--borderedblock-bg, var(--def-bg));
@@ -785,7 +785,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2021/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">Secure Payment Confirmation</h1>
-   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2023-06-21">21 June 2023</time></p>
+   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2023-07-31">31 July 2023</time></p>
    <details open>
     <summary>More details about this document</summary>
     <div data-fill-with="spec-metadata">
@@ -1786,10 +1786,6 @@ <h2 class="heading settled" data-level="5" id="sctn-payment-extension-registrati
      </dl>
     <dt data-md><dfn data-dfn-type="dfn" data-export id="client-extension-processing-registration">Client extension processing (<a data-link-type="dfn" href="https://w3c.github.io/webauthn/#registration-extension" id="ref-for-registration-extension②">registration</a>)<a class="self-link" href="#client-extension-processing-registration"></a></dfn>
     <dd data-md>
-     <p class="note" role="note"><span class="marker">Note:</span> Reading <a data-link-type="biblio" href="#biblio-webauthn-3" title="Web Authentication: An API for accessing Public Key Credentials - Level 3">[webauthn-3]</a> literally, these steps don’t work; extensions
-are injected at step 12 of <code>[[Create]]</code> and cannot really modify anything.
-However other extensions ignore that entirely and assume they can modify any
-part of any WebAuthn algorithm!</p>
      <p>When <a href="https://w3c.github.io/webauthn/#sctn-createCredential">creating a new credential</a>:</p>
      <ol>
       <li data-md>