Hotfix: In headings hyperlinks are ignored. Added w:hyperlink to xpath filter

Author: hannesdorn

src/PhpWord/Reader/Word2007/AbstractPart.php

@@ -151,7 +151,11 @@ protected function readParagraph(XMLReader $xmlReader, DOMElement $domNode, $par
         } elseif ($headingDepth !== null) {
             // Heading or Title
             $textContent = null;
-            $nodes = $xmlReader->getElements('w:r', $domNode);
+            // 2023-08-02 hannes@dorn.cc
+            // $nodes = $xmlReader->getElements('w:r', $domNode);
+            // delivers only text paragraphs, but no hyperlinks
+            // I extended xpath with w:hyperlink
+            $nodes = $xmlReader->getElements('w:r|w:hyperlink', $domNode);
             if ($nodes->length === 1) {
                 $textContent = htmlspecialchars($xmlReader->getValue('w:t', $nodes->item(0)), ENT_QUOTES, 'UTF-8');
             } else {