Define the privacy-policy link type

The privacy-policy link type that refers to a document which contains information about the data collection and usage practices that apply to the current context.

This link type was defined in section 4 of RFC 6903 (https://datatracker.ietf.org/doc/html/rfc6903#section-4), and rediscovered in a discussion at privacycg/proposals#39.

source

@@ -25971,6 +25971,15 @@ document.body.appendChild(wbr);</code></pre>
      <td>Indicates that the current document is a part of a series, and that the previous document in the series is the referenced document.</td>
     </tr>
 
+    <tr>
+     <td><code data-x="rel-privacy-policy">privacy-policy</code></td>
+     <td colspan="2"><span>Hyperlink</span></td>
+     <td><em>not allowed</em></td>
+     <td class="no"> &middot; </td>
+     <td class="no"> &middot; </td>
+     <td>Gives a link to information about the data collection and usage practices that apply to the current document.</td>
+    </tr>
+
     <tr>
      <td><code data-x="rel-search">search</code></td>
      <td colspan="3"><span>Hyperlink</span></td>
@@ -27453,6 +27462,18 @@ document.body.appendChild(wbr);</code></pre>
   is to <span>preload</span> <var>options</var>.</p>
 
 
+  <h5>Link type "<dfn attr-value for="link/rel,a/rel,area/rel"><code
+  data-x="rel-privacy-policy">privacy-policy</code></dfn>"</h5>
+
+  <p>The <code data-x="rel-privacy-policy">privacy-policy</code> keyword may be used with
+  <code>link</code>, <code>a</code>, and <code>area</code> elements. This keyword creates a
+  <span>hyperlink</span>.</p>
+
+  <p>The <code data-x="rel-privacy-policy">privacy-policy</code> keyword indicates that the
+  referenced document contains information about the data collection and usage practices that apply
+  to the current document, as described in more detail in <cite>Additional Link Relation
+  Types</cite>. The referenced document may be a standalone privacy policy, or a specific section of
+  some more general document. <ref>RFC6903</ref></p>
 
 
   <h5>Link type "<dfn attr-value for="link/rel,a/rel,area/rel,form/rel"><code
@@ -140162,6 +140183,9 @@ INSERT INTERFACES HERE
    <dt id="refsRFC6596">[RFC6596]</dt>
    <dd><cite><a href="https://www.rfc-editor.org/rfc/rfc6596">The Canonical Link Relation</a></cite>, M. Ohye, J. Kupke. IETF.</dd>
 
+   <dt id="refsRFC6903">[RFC6903]</dt>
+   <dd><cite><a href="https://www.rfc-editor.org/rfc/rfc6903">Additional Link Relation Types</a></cite>, J. Snell. IETF.</dd>
+
    <dt id="refsRFC7034">[RFC7034]</dt>
    <dd>(Non-normative) <cite><a href="https://www.rfc-editor.org/rfc/rfc7034">HTTP Header Field X-Frame-Options</a></cite>, D. Ross, T. Gondrom. IETF.</dd>