Typo fix

index.html

@@ -3746,7 +3746,7 @@ <h2>Definition of Roles</h2>
 				<p>A element with role <code>legend</code> element can provide an accessible name for elements with grouping roles if it is progammatically associated with the element.  Authors MAY associate an element with role <code>legend</code> with an element by using one of two methods:</p>
 				<ul>
 					<li>legend: The element contains an element with role <code>legend</code> element.  If the element contains more than one element with role <code>legend</code>, only the first descendant element with role <code>legend</code> is used for computing the accessible name.</li>
-					<li>reference: The element eith role <code>legend</code> is referenced by the element it names via the <pref>aria-labelledby</pref> attribute.</li>
+					<li>reference: The element with role <code>legend</code> is referenced by the element it names via the <pref>aria-labelledby</pref> attribute.</li>
 				</ul>
 				<p>The legend method of naming is supported only if the element being named has one of the following grouping roles:</p>
 				<ul>