Redirect shadow-styling to css-scoping

Author: tabatkins

.htaccess

@@ -12,6 +12,7 @@ RewriteRule ^css3-mediaqueries/(.*)$ mediaqueries3/$1 [R=301,L]
 RewriteRule ^css3-text-layout/(.*)$ css-writing-modes-3/$1 [R=301,L]
 RewriteRule ^css3-2d-transforms/(.*)$ css3-transforms/$1 [R=301,L]
 RewriteRule ^css3-3d-transforms/(.*)$ css3-transforms/$1 [R=301,L]
+RewriteRule ^shadow-styling/(.*)$ css-scoping/$1 [R=301,L]
 
 
 # Versioning System Switchover