tidy example and paragraph introduction

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@334412 c90b9560-bf6c-de11-be94-00142212c4b1

reference/pcre/pattern.syntax.xml

@@ -44,13 +44,12 @@
 #^[^0-9]$#
 +php+
 %[a-zA-Z0-9_-]%
-{\w[\w0-9]*}
 ]]>
     </programlisting>
    </informalexample>
   </para>
   <para>
-   In addition to the aforementioned delimiters, it is also possible to use
+   It is also possible to use
    bracket style delimiters where the opening and closing brackets are the
    starting and ending delimiter, respectively. <literal>()</literal>,
    <literal>{}</literal>, <literal>[]</literal> and <literal>&lt;&gt;</literal>