README-QtQuick: Redirect to 2.0 branch

QtQuick in 1.7 isn't receiving any new features or fixes

README-QtQuick.md

@@ -1,23 +1,3 @@
 # KDDockWidgets and QtQuick
 
-## Supported Qt versions and toolchains
+Please use branch 2.0 for QtQuick support.
-
-KDDockWidgets for QtQuick requires a C++17 capable compiler and Qt >= 6.2.1.
-
-Qt 5.15.2 will probably also work, but it's not built and tested by KDAB CI, we
-advise users to move to Qt6 as soon as possible.
-
-## Troubleshooting
-
-- QtGraphicalEffects is not supported, as it's buggy when moving between different QWindows.
-  See for example QTBUG-94943, KDDockWidgets issue #213. Also search the Qt bug tracker
-  for "QQuickItem: Cannot use same item on different windows at the same time"
-
-- Very rarely, in some Nvidia/X11 setups, floating/docking has noticeable lag (like 1 second)
-  This could be solved by going to Nvidia's settings and making sure all monitors have
-  the same refresh rate and disabling "Allow Flipping". It's not known why this solves it. Might also
-  be a bug in Qt.
-
-- `"EGLFS: OpenGL windows cannot be mixed with others"` QtQuick on EGLFS does not support having more
-  than 1 window. This is a known QtQuick limitation. The QtWidgets stack worksaround this by compositing
-  all windows into a single native window.