Add Ardupilot compatibility list

templates/index.html

@@ -2,6 +2,9 @@
 <title>AP Terrain Generator</title>
 <h1>AP Terrain Generator</h1>
 <p>Use this to generate terrain to put on your SD card</p>
+
+<p>Compatible with Ardupilot Plane 4.0.6+ and Copter 4.0.4+</p>
+ 
 <h2>Options</h2>
  <form action="/generate" method="post">
   <label for="lat">Latitude:</label><br>
@@ -14,4 +17,4 @@
   <input type="submit" value="Submit" method="post">
  </form> 
 
-<footer>Created by Stephen Dade. <a href=https://github.com/stephendade/terraingen>Source Code<a></footer>
+<footer>Created by Stephen Dade, <a href=https://github.com/stephendade/terraingen>Source Code<a>.</footer>