hotfix pagebreak

static/editor.html

@@ -273,7 +273,7 @@
         <form id="pdf-export-form" method="dialog" class="dialog-panel pdf-export-panel">
             <button class="modal-close" type="button" data-pdf-cancel aria-label="Close dialog">×</button>
             <h2>Export PDF</h2>
-            <p class="dialog-copy" data-i18n="editor.pdfPageBreakHelp">Use --- or Ctrl/Cmd+Enter to start a new PDF page.</p>
+            <p class="dialog-copy" data-i18n="editor.pdfPageBreakHelp">Use Page break (PDF) or Ctrl/Cmd+Enter to start a new PDF page.</p>
             <div class="pdf-export-fields">
                 <label><span>Page format</span><select class="app-select-input" id="pdf-page-format">
                         <option value="a4-portrait">A4 — Portrait</option>