Fix w3c#87: a dictionary member is present, not defined.

Changed in Constructing events.

sections/events.include

@@ -277,15 +277,15 @@ method must, when invoked, run these steps:
 <p>When a <dfn lt="dom event constructor|event constructor|constructor|constructors">constructor</dfn> of the <code><a>Event</a></code> interface, or of an interface that inherits from the <code><a>Event</a></code> interface, is invoked, these steps must be run:
 
 <ol>
-  1. Create an <a>event</a> that uses the interface the constructor was invoked upon.
+  <li><p> Create an <a>event</a> that uses the interface the constructor was invoked upon.
 
-  2. Set its <a>initialized flag</a>.
+  <li><p> Set its <a>initialized flag</a>.
 
-  3. Initialize the <code><a>type</a></code> attribute to the <var>type</var> argument.
+  <li><p> Initialize the <code><a>type</a></code> attribute to the <var>type</var> argument.
 
-  4. If there is an <var>eventInitDict</var> argument then for each <a>dictionary member</a> defined therein find the attribute on <a>event</a> whose <a>identifier</a> matches the key of the <a>dictionary member</a> and then set the attribute to the value of that <a>dictionary member</a>.
+  <li><p> If there is an <var>eventInitDict</var> argument then for each <a>dictionary member</a> present, find the attribute on <a>event</a> whose <a>identifier</a> matches the key of the <a>dictionary member</a> and then set the attribute to the value of that <a>dictionary member</a>.
 
-  5. Return the <a>event</a>.
+  <li><p> Return the <a>event</a>.
 
 </ol>