Update from modelica/ssp-standard@7c70dcd

Author: modelica

static/docs/main/images/SchemaLegend.svg

@@ -587,7 +587,7 @@
 <div id="header">
 <h1>System Structure and Parameterization</h1>
 <div class="details">
-<span id="revnumber">version 579cd4c,</span>
+<span id="revnumber">version 7c70dcd,</span>
 <span id="revdate">2026-02-23</span>
 </div>
 <div id="toc" class="toc2">
@@ -930,8 +930,14 @@ <h1>System Structure and Parameterization</h1>
 <li>
 <p>Non-normative text is given in square brackets in italic font: [ <em>especially examples are defined in this style.</em> ].</p>
 </li>
+<li>
+<p>The XML schema definitions throughout this document are illustrated using diagrams with the following notation:</p>
+</li>
 </ul>
 </div>
+<div class="paragraph">
+<p><span class="image"><img src="images/SchemaLegend.svg" alt="Schema Legend"></span></p>
+</div>
 </div>
 </div>
 <div class="sect1">