update documentation

README.md

@@ -44,3 +44,8 @@ $ ./make build && ./make tests
 
 > NOTE #1: to rebundle the THREE/AFRAME javascripts during dev run `./make build js`
 > NOTE #2: to regenerate the parser in various languages (via haxe), run `./make build parser`
+
+<br>
+<a href="https://nlnet.nl" target="_blank">
+  <img src="https://nlnet.nl/" width="100"/>
+</a>

example/assets/css/style.css

@@ -297,6 +297,12 @@ html{
   right: 20px;
   width: 175px;
   border-radius: 20px;
+  background: #fff;
+  border: 5px solid #888;
+  border-radius: 15px;
+  margin: 20px 20px;
+  overflow: hidden;
+  -webkit-mask-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAA5JREFUeNpiYGBgAAgwAAAEAAGbA+oJAAAAAElFTkSuQmCC);
 }
 
 input#share{