minor change to line 654

Author: gwooly

1-js/05-data-types/03-string/article.md

@@ -651,7 +651,7 @@ alert( "S\u0307\u0323".normalize().length ); // 1
 alert( "S\u0307\u0323".normalize() == "\u1e68" ); // true
 ```
 
-In reality, this is not always the case. The reason being that the symbol `Ṩ` is "common enough", so UTF-16 creators included it in the main table and gave it to the code.
+In reality, this is not always the case. The reason being that the symbol `Ṩ` is "common enough", so UTF-16 creators included it in the main table and gave it the code.
 
 If you want to learn more about normalization rules and variants -- they are described in the appendix of the Unicode standard: [Unicode Normalization Forms](http://www.unicode.org/reports/tr15/), but for most practical purposes the information from this section is enough.