Doc: Fix broken links in Qt Widgets

The iQRhiWidget API got changed in commits acebb97b5880,  acebb97b58807d1d591.

Pick-to: 6.8 6.9 6.10
Change-Id: I7791b1a61d94f33ba01cfe22e63ecfdc7b81022b
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

examples/widgets/doc/src/cuberhiwidget.qdoc

@@ -35,7 +35,7 @@
     at run time. The QRhiWidget subclass is prepared to handle the changing
     sample count correctly.
 
-    \li Forcing an \l{QRhiWidget::explicitSize}{explicitly specified backing
+    \li Forcing an \l{QRhiWidget::fixedColorBufferSize}{explicitly specified backing
     texture size} can be toggled dynamically and controlled with a slider
     between 16x16 up to 512x512 pixels.
 

examples/widgets/doc/src/simplerhiwidget.qdoc

@@ -112,7 +112,7 @@
     \c{renderTarget()->pixelSize()} or \c{colorTexture()->pixelSize()}
     always gives the latest, up-to-date size in pixels. What this example is
     not prepared for is changing
-    \l{QRhiWidget::textureFormat}{texture formats} and
+    \l{QRhiWidget::colorBufferFormat}{color buffer formats} and
     \l{QRhiWidget::sampleCount}{multisample settings}
     since it only ever uses the defaults (RGBA8 and no multisample antialiasing).
 

src/widgets/dialogs/qdialog.cpp

@@ -230,7 +230,7 @@ QVariant QDialogPrivate::styleHint(QPlatformDialogHelper::StyleHint hint) const
     the user to continue to use other windows in an application.
 
     The most common way to display a modal dialog is to call its
-    \l open() function. Alternatively, you can call \l setModal(true) or
+    \l open() function. Alternatively, you can call \l{setModal()}{setModal(true)} or
     \l setWindowModality(), and then \l show(). In both cases, once the dialog is
     displayed, the control is immediately returned to the caller. You must connect
     to the \l finished() signal to know when the dialog is closed and what its