add parallel to manual

git-svn-id: https://svn.php.net/repository/phpdoc/doc-base/trunk@346876 c90b9560-bf6c-de11-be94-00142212c4b1

Author: krakjoe

manual.xml.in

@@ -330,6 +330,7 @@
    &reference.pcntl.book;
    &reference.posix.book;
    &reference.exec.book;
+   &reference.parallel.book;
    &reference.pthreads.book;
    &reference.pht.book;
    &reference.sem.book;