update landing page

Author: aardgoose

docs/index.html

@@ -214,7 +214,7 @@
 
 </script>
 <h1>Cave View</h1>
-<h2>... a 3D cave survey viewer for the web, version 2.7.0</h2>
+<h2>... a 3D cave survey viewer for the web, version 2.7.1</h2>
 <div id="scene-box" >
 <div id="scene" class="cv-container" ><div id="scene-caption" ></div></div>
 </div>
@@ -245,10 +245,10 @@ <h3>Demos</h3>
 <h3>Information</h3>
 
 <p>Release date: 2023-02-08</p>
-<p><a href="https://github.com/aardgoose/CaveView.js/releases" >Download package and Release Notes (2.7.0)</a></p>
+<p><a href="https://github.com/aardgoose/CaveView.js/releases" >Download package and Release Notes (2.7.1)</a></p>
 <p><a href="installation.html" >Installation instructions</a></p>
 <p><a href="reference.html" >API Reference</a></p>
-<p><a href="https://github.com/aardgoose/CaveView.js/tree/2.7.0" >Source code available here.</a></p>
+<p><a href="https://github.com/aardgoose/CaveView.js/tree/2.7.1" >Source code available here.</a></p>
 <p><a href="https://threejs.org/" >Built with three.js r150</a></p>
 <p><a href="build.html" >Building instructions</a></p>