Editorial: Fix typo (#1116)

spec.html

@@ -30403,7 +30403,7 @@ <h1>Notation</h1>
         <p>Furthermore, the descriptions below use the following internal data structures:</p>
         <ul>
           <li>
-            A <em>CharSet</em> is a mathematical set of characters, either code units or code points depending up the state of the _Unicode_ flag. &ldquo;All characters&rdquo; means either all code unit values or all code point values also depending upon the state if _Unicode_.
+            A <em>CharSet</em> is a mathematical set of characters, either code units or code points depending up the state of the _Unicode_ flag. &ldquo;All characters&rdquo; means either all code unit values or all code point values also depending upon the state of _Unicode_.
           </li>
           <li>
             A <em>State</em> is an ordered pair (_endIndex_, _captures_) where _endIndex_ is an integer and _captures_ is a List of _NcapturingParens_ values. States are used to represent partial match states in the regular expression matching algorithms. The _endIndex_ is one plus the index of the last input character matched so far by the pattern, while _captures_ holds the results of capturing parentheses. The _n_<sup>th</sup> element of _captures_ is either a List that represents the value obtained by the _n_<sup>th</sup> set of capturing parentheses or *undefined* if the _n_<sup>th</sup> set of capturing parentheses hasn't been reached yet. Due to backtracking, many States may be in use at any time during the matching process.