Update README.md

README.md

@@ -21,3 +21,7 @@ http://htmlpreview.github.io/?https://raw.githubusercontent.com/genericptr/Pas2J
 OBJ Loader with lighting:
 
 http://htmlpreview.github.io/?https://raw.githubusercontent.com/genericptr/Pas2JS-WebGL/master/html/Pas2JS_WebGL_OBJ.html
+
+Terrain generation using Perlin noise:
+
+http://htmlpreview.github.io/?https://raw.githubusercontent.com/genericptr/Pas2JS-WebGL/master/html/Pas2JS_WebGL_Terrain.html