markdown: Code beautification

Change-Id: I74d30578a9725f10a8d4e86ff8740d5f467d0fbc
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

examples/webenginewidgets/markdowneditor/document.h

@@ -57,7 +57,7 @@
 class Document : public QObject
 {
     Q_OBJECT
-    Q_PROPERTY(QString text MEMBER m_text NOTIFY textChanged)
+    Q_PROPERTY(QString text MEMBER m_text NOTIFY textChanged FINAL)
 public:
     explicit Document(QObject *parent = nullptr) : QObject(parent) {}
 

examples/webenginewidgets/markdowneditor/mainwindow.h

@@ -67,7 +67,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    explicit MainWindow(QWidget *parent = 0);
+    explicit MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
 
     void openFile(const QString &path);