Update docs. This was performed automatically.

api/NetTopologySuite.IO.GpxFixKind.html

@@ -83,7 +83,8 @@
 
   <h1 id="NetTopologySuite_IO_GpxFixKind" data-uid="NetTopologySuite.IO.GpxFixKind" class="text-break">Enum GpxFixKind
   </h1>
-  <div class="markdown level0 summary"></div>
+  <div class="markdown level0 summary"><p>Specifies what kind of GPS fix a particular waypoint had.</p>
+</div>
   <div class="markdown level0 conceptual"></div>
   <h6><strong>Namespace</strong>: <a class="xref" href="NetTopologySuite.IO.html">NetTopologySuite.IO</a></h6>
   <h6><strong>Assembly</strong>: NetTopologySuite.IO.GPX.dll</h6>
@@ -103,23 +104,28 @@ <h3 id="fields">Fields
     <tbody>
       <tr>
         <td id="NetTopologySuite_IO_GpxFixKind_DGPS">DGPS</td>
-        <td></td>
+        <td><p>Differential GPS (DGPS) fix.</p>
+</td>
       </tr>
       <tr>
         <td id="NetTopologySuite_IO_GpxFixKind_None">None</td>
-        <td></td>
+        <td><p>No fix.</p>
+</td>
       </tr>
       <tr>
         <td id="NetTopologySuite_IO_GpxFixKind_PPS">PPS</td>
-        <td></td>
+        <td><p>Precise Positioning Service (PPS) fix.</p>
+</td>
       </tr>
       <tr>
         <td id="NetTopologySuite_IO_GpxFixKind_ThreeDimensional">ThreeDimensional</td>
-        <td></td>
+        <td><p>3D fix.</p>
+</td>
       </tr>
       <tr>
         <td id="NetTopologySuite_IO_GpxFixKind_TwoDimensional">TwoDimensional</td>
-        <td></td>
+        <td><p>2D fix.</p>
+</td>
       </tr>
     </tbody>
   </thead></thead></table>
@@ -134,7 +140,7 @@ <h3 id="fields">Fields
                     <a href="https://github.com/NetTopologySuite/NetTopologySuite.IO.GPX/new/develop/doc/overwrite/new?filename=NetTopologySuite_IO_GpxFixKind.md&amp;value=---%0Auid%3A%20NetTopologySuite.IO.GpxFixKind%0Asummary%3A%20'*You%20can%20override%20summary%20for%20the%20API%20here%20using%20*MARKDOWN*%20syntax'%0A---%0A%0A*Please%20type%20below%20more%20information%20about%20this%20API%3A*%0A%0A" class="contribution-link">Improve this Doc</a>
                   </li>
                   <li>
-                    <a href="https://github.com/NetTopologySuite/NetTopologySuite.IO.GPX/blob/develop/src/NetTopologySuite.IO.GPX/GpxFixKind.cs/#L3" class="contribution-link">View Source</a>
+                    <a href="https://github.com/NetTopologySuite/NetTopologySuite.IO.GPX/blob/develop/src/NetTopologySuite.IO.GPX/GpxFixKind.cs/#L6" class="contribution-link">View Source</a>
                   </li>
                 </ul>
               </div>

api/NetTopologySuite.IO.html

@@ -107,7 +107,14 @@ <h4><a class="xref" href="NetTopologySuite.IO.GpxExtensionReader.html">GpxExtens
 </p>
 </section>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxExtensionWriter.html">GpxExtensionWriter</a></h4>
-      <section></section>
+      <section><p>Provides hooks to turn extension content into GPX &quot;extensions&quot; elements.</p>
+<p>
+The default behavior in this base class passes through an <a class="xref" href="https://docs.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable&lt;T&gt;</a> of
+<a class="xref" href="https://docs.microsoft.com/dotnet/api/system.xml.linq.xelement">XElement</a> objects if that&apos;s what&apos;s stored, otherwise it will yield an empty
+sequence.  This allows us to round-trip when the default <a class="xref" href="NetTopologySuite.IO.GpxExtensionReader.html">GpxExtensionReader</a>
+implementation is used, and not much else.
+</p>
+</section>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxMetadata.html">GpxMetadata</a></h4>
       <section></section>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxPerson.html">GpxPerson</a></h4>
@@ -149,15 +156,18 @@ <h4><a class="xref" href="NetTopologySuite.IO.GpxDgpsStationId.html">GpxDgpsStat
       <section><p>Represents the ID of a DGPS station.</p>
 </section>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxLatitude.html">GpxLatitude</a></h4>
-      <section></section>
+      <section><p>Represents a latitude value.</p>
+</section>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxLongitude.html">GpxLongitude</a></h4>
-      <section></section>
+      <section><p>Represents a longitude value.</p>
+</section>
       <h4><a class="xref" href="NetTopologySuite.IO.ImmutableGpxWaypointTable.Enumerator.html">ImmutableGpxWaypointTable.Enumerator</a></h4>
       <section></section>
     <h3 id="enums">Enums
   </h3>
       <h4><a class="xref" href="NetTopologySuite.IO.GpxFixKind.html">GpxFixKind</a></h4>
-      <section></section>
+      <section><p>Specifies what kind of GPS fix a particular waypoint had.</p>
+</section>
 </article>
           </div>