README: remove bionic from explicitly supported systems

README.md

@@ -60,7 +60,7 @@ wget -qO- https://raw.githubusercontent.com/Botspot/pi-apps/master/install | bas
 - <img src="https://pi-apps.io/img/other-icons/ubuntu-icon.svg" height="14"> [**Raspberry Pi Ubuntu**](https://ubuntu.com/download/raspberry-pi) (Jammy/22.04 LTS) (GNOME, Mate, KDE, Budgie, etc): <span style="color:var(--success-dark);">fully supported</span>
 - <img src="https://pi-apps.io/img/other-icons/pop-os.svg" height="14"> [**Raspberry Pi Pop_OS!**](https://pop.system76.com/): <span style="color:var(--warn-dark);">you may encounter errors installing or running some apps</span>
 #### Nintendo Switch <img src=https://pi-apps.io/img/other-icons/switch-icon.svg height="14"> and Nvidia Jetson <img src=https://pi-apps.io/img/other-icons/nvidia-icon.svg height="14">:
-- <img src=https://pi-apps.io/img/other-icons/switchroot-icon.png height="14"> [**Switchroot L4T Ubuntu Bionic (18.04)**](https://wiki.switchroot.org/en/Linux/Ubuntu-Install-Guide) and [**Switchroot L4T Ubuntu Jammy (22.04)**](https://wiki.switchroot.org/en/Linux/Ubuntu-Jammy-Install-Guide): <span style="color:var(--success-dark);">fully supported (incompatible apps are hidden)</span>
+- <img src=https://pi-apps.io/img/other-icons/switchroot-icon.png height="14"> [**Switchroot L4T Ubuntu Jammy (22.04)**](https://wiki.switchroot.org/en/Linux/Ubuntu-Jammy-Install-Guide): <span style="color:var(--success-dark);">fully supported (incompatible apps are hidden)</span>
 - <img src=https://pi-apps.io/img/other-icons/nvidia-icon.svg height="14"> [**Nvidia Jetpack 5 and 6**](https://www.nvidia.com/en-us/autonomous-machines/embedded-systems/): <span style="color:var(--success-dark);">fully supported (incompatible apps are hidden)</span>
 #### Other ARM Hardware:
 - [**Pine64**](https://www.pine64.org/), [**Orange Pi**](http://www.orangepi.org/), [**Radxa**](https://rockpi.org/), [**Bananna Pi**](https://banana-pi.org/), [**Khadas**](https://www.khadas.com/), [**Inovato**](https://www.inovato.com/), [**Libre Computer**](https://libre.computer/), and other **ARM Debian/Ubuntu** Based Devices: <span style="color:var(--warn-dark);">not actively tested, most apps should work (pi-specific apps are hidden). Only official Debian/Ubuntu ports should be used on these devices for the best compatibility</span>