Update index.html

index.html

@@ -35,7 +35,7 @@ text {
 
 
 <h2>GPIO</h2>
-<p>To measure speed across a GPIO layer, we use a logic level as out token.</p>
+<p>To measure speed across a GPIO layer, we use a logic level as our token.  We also enforce that the token must reach the CPU, where code is running, rather than simply be inverted by digital logic or an event system.</p>
 
 <div id='gpio'></div>