integration.md: update xfce4-panel section

Author: johanmalm

src/integration.md

@@ -109,37 +109,20 @@ See example configuration [here](obligatory-screenshot.html#panel).
 
 ## 2.3 xfce4-panel {#xfce4panel}
 
-[xfce4-panel repository]
+- [xfce4-panel repository]
+- [MR103]
+- [xfce4-panel]
 
-Just after the release of Xfce 4.18 in Dec 2022, Wayland support was added
-([MR103]) to [xfce4-panel] including the layer-shell and
-foreign-toplevel-management protocols.
+Since Xfce 4.20, Wayland support has included wlr-layer-shell and
+wlr-foreign-toplevel-management protocols.
 
-For the time being it is best to force all plugins to run as internal:
+For the time being it is best to force all plugins to run as internal with:
 
 `xfconf-query -c xfce4-panel -p /force-all-internal -t bool -s true --create`
 
-Until the next release, you can get it going by cloning the master branch and
-building with the following (adjusting prefix to suit your system of course):
-
-```
-./autogen --prefix=/usr
-make
-make install
-```
-
-On Arch Linux you can simply install the following packages: [xfce4-dev-tools],
-[libxfce4util], [libxfce4ui], [libxfce4windowing-devel] and [xfce4-panel-git].
-
 [MR103]: https://gitlab.xfce.org/xfce/xfce4-panel/-/merge_requests/103
 [xfce4-panel]: https://docs.xfce.org/xfce/xfce4-panel/start
 
-[xfce4-dev-tools]: https://archlinux.org/packages/extra/x86_64/xfce4-dev-tools/
-[libxfce4util]: https://archlinux.org/packages/extra/x86_64/libxfce4util/
-[libxfce4ui]: https://archlinux.org/packages/extra/x86_64/libxfce4ui/
-[libxfce4windowing-devel]: https://aur.archlinux.org/packages/libxfce4windowing-devel
-[xfce4-panel-git]: https://aur.archlinux.org/packages/xfce4-panel-git
-
 ## 2.4 yambar {#yambar}
 
 [yambar repository]