Doc: Describe the "Forward to local display" check box

In the run settings for a remote linux device.

Task-number: QTCREATORBUG-29392
Change-Id: Ib46241b62b4b0208f4f1e52419cc1b2a18e40295
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

dist/changelog/changes-12.0.0.md

@@ -214,6 +214,7 @@ Projects
   ([PYSIDE-2153](https://bugreports.qt.io/browse/PYSIDE-2153))
   ([Documentation](https://doc-snapshots.qt.io/qtcreator-12.0/creator-python-development.html#set-up-pyside6))
 * Added the option to forward the display for remote Linux
+  ([Documentation](https://doc-snapshots.qt.io/qtcreator-12.0/creator-run-settings.html#specifying-run-settings-for-linux-based-devices))
 * Fixed PySide wheels installation on macOS
 
 ### vcpkg

doc/qtcreator/src/linux-mobile/creator-projects-settings-run-linux.qdocinc

@@ -21,10 +21,13 @@
     command in the \uicontrol {Alternate executable on device} field and select the
     \uicontrol {Use this command instead} check box.
 
-    \image qtcreator-run-settings-linux.png "Run settings for Linux-based devices"
+    \image qtcreator-run-settings-remote-linux.webp {Run settings for Linux-based devices}
 
     You can specify arguments to pass to your application in the
     \uicontrol {Command line arguments} field.
 
+    Select the \uicontrol {Forward to local display} check box to show a remotely
+    running X11 client on a local display.
+
 //! [run settings linux]
 */