Improve endnote docs.

Author: Don McCurdy

docs/examples/loaders/GLTFLoader.html

@@ -37,10 +37,11 @@ <h2>Extensions</h2>
 		</ul>
 
 		<p><i>
-			<sup>*</sup>UV transforms are supported, with several key limitations in comparison to the
-			glTF specification. A transform is applied to all textures using that UV set on the current
-			material, and no more than one transform may be used per material. Each use of a texture with
-			a unique transform will result in an additional GPU texture upload. See
+			<sup>*</sup>UV transforms are supported, with several key limitations. Transforms applied to
+			a texture using the first UV slot (all textures except aoMap and lightMap) must share the same
+			transform, or no transfor at all. The aoMap and lightMap textures cannot be transformed. No
+			more than one transform may be used per material. Each use of a texture with a unique
+			transform will result in an additional GPU texture upload. See
 			#[link:https://github.com/mrdoob/three.js/pull/13831 13831] and
 			#[link:https://github.com/mrdoob/three.js/issues/12788 12788].
 		</i></p>

docs/page.css

@@ -130,3 +130,13 @@ span.param {
 a.param:hover {
 	color: #777;
 }
+
+sup, sub {
+	/* prevent superscript and subscript elements from affecting line-height */
+  vertical-align: baseline;
+  position: relative;
+  top: -0.4em;
+}
+sub {
+  top: 0.4em;
+}