fixing two typos

Author: howcome

css-multicol/Overview.src.html

@@ -821,8 +821,9 @@ <h3>Pseudo-algorithm</h3>
 </pre>
 
 <p>And:
+
 <pre>
-(11)  W := max(0, ((U + column-gap)/N - column-gap)
+(11)  W := max(0, ((U + column-gap)/N - column-gap))
 </pre>
 
 
@@ -1011,7 +1012,7 @@ <h3 id='crs'>'column-rule-style'</h3>
       <td>no
 </table>
 
-<p>The 'column-rule-style' property sets the style of the rule between columns of an element. The &lt;border-style&gt; values are defined in [[!CSS21]] and the values are interpreted as in the <a href="http://www.w3.org/TR/CSS2/tables.html#collapsing-borders">the collapsing border model</a>.
+<p>The 'column-rule-style' property sets the style of the rule between columns of an element. The &lt;border-style&gt; values are defined in [[!CSS21]] and the values are interpreted as in the <a href="http://www.w3.org/TR/CSS2/tables.html#collapsing-borders">collapsing border model</a>.
 
 <p>The 'none' value forces the computed value of <span class="property">'column-rule-width'</span> to be '0'.