s/any kind of/any cross-devices/

Thanks to Bruno Racineux for reporting this.

index.html

@@ -339,7 +339,7 @@ <h2>
           <span class='practicelab'>orientation.angle and orientation.type
           relationship</span>
           <p class='practicedesc'>
-            Never assume any kind of relationship between the screen
+            Never assume any cross-devices relationship between the screen
             orientation type and the screen orientation angle. Any assumption
             would be wrong given that a device might have <code>90</code> and
             <code>270</code> as the angles for <code>landscape</code> types but