update documentation

docs/html/inherit_graph_25.svg

@@ -4,16 +4,16 @@
 <!-- Generated by graphviz version 2.42.4 (0)
  -->
 <!-- Title: Graphical Class Hierarchy Pages: 1 -->
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+<svg width="112pt" height="27pt"
+ viewBox="0.00 0.00 112.00 27.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 23)">
 <title>Graphical Class Hierarchy</title>
 <!-- Node0 -->
 <g id="Node000000" class="node">
 <title>Node0</title>
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-<text text-anchor="middle" x="50" y="-7" font-family="Helvetica,sans-Serif" font-size="10.00">PgnLookupResult</text>
+<g id="a_Node000000"><a xlink:href="structPendingComment.html" target="_top" xlink:title="Deferred frame or signal comment and its source location.">
+<polygon fill="white" stroke="#666666" points="104,-19 0,-19 0,0 104,0 104,-19"/>
+<text text-anchor="middle" x="52" y="-7" font-family="Helvetica,sans-Serif" font-size="10.00">PendingComment</text>
 </a>
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