[css-egg] Fix typo

Author: frivoal

css-egg/Overview.bs

@@ -133,7 +133,7 @@ at (or beyond) the speed of light.
 	border-radius: 50%;
 	border-style:solid attr(data-radius length, 0) attr(data-color color, white);
 	margin: calc(-1 * attr(data-radius length, 0));
-	transform-origin: attr(data-radius lenght, 0)
+	transform-origin: attr(data-radius length, 0)
 	                  calc(attr(data-radius length, 0) + attr(data-semimajor-axis length, 0));
 	animation: orbit linear infinite attr(data-orbital-period time, 0);
 }
@@ -394,4 +394,5 @@ Bruce Lawson,
 Chris Mills,
 Daniel Glazman,
 Leif Arne Storset,
+Paul Verbeek,
 Peter Linss.