Add ISSUE label about mo@accent

https://github.com/mathml-refresh/mathml/issues/210

index.html

@@ -1408,6 +1408,7 @@ <h4>Operator, Fence, Separator or Accent <code>&lt;mo&gt;</code></h4>
             operators in this broad sense.
           </p>
           <div class="issue" data-number="209">Remove fence/separator?</div>
+          <div class="issue" data-number="210">Remove mo@accent?</div>
           <p>
             The <code>&lt;mo&gt;</code> element accepts the attributes described
             in <a href="#global-attributes"></a> as well as the following
@@ -1526,6 +1527,7 @@ <h4>Dictionary-based attributes</h4>
               </li>
             </ol>
             <div class="issue" data-number="209">Remove fence/separator?</div>
+            <div class="issue" data-number="210">Remove mo@accent?</div>
             <p>
               The
               <dfn><code>fence</code></dfn>,
@@ -3064,7 +3066,7 @@ <h3>Script and Limit Schemata</h3>
         <p>
           In addition to sub/superscript elements, MathML has overscript and
           underscript elements that place scripts above and below the base.
-          These elements can be used to place limits on large operators, or fo
+          These elements can be used to place limits on large operators, or for
           placing accents and lines above or below the base.
         </p>
         <section id="subscripts-and-superscripts-msub-msup-msubsup">