Fixes #4453

Fix typo : Fixes #4453

Author: mclegrand

css-transforms-1/Overview.bs

@@ -662,7 +662,7 @@ Note: The syntax reflects implemented behavior in user agents and differs from t
     </pre>
   </dd>
   <dt id="svg-skewX">skewX</dt>
-  <dd><pre>"skewY" wsp* "(" wsp* number wsp* ")"</pre></dd>
+  <dd><pre>"skewX" wsp* "(" wsp* number wsp* ")"</pre></dd>
   <dd>
     <pre class='railroad'>
     Stack: