read and write

index.html

@@ -15,7 +15,7 @@
         <var>capturer</var> the following new capabilities:
       </p>
       <ul>
-        <li>Read or set <var>capturee</var>'s [=zoom level=].</li>
+        <li>Read and write <var>capturee</var>'s [=zoom level=].</li>
         <li>
           Deliver a wheel event over <var>capturee</var>'s viewport at coordinates of
           <var>capturer</var>'s choosing.