fixed bash completion link

Signed-off-by: xn0px90 <xn0px90@users.noreply.github.com>

README.md

@@ -194,11 +194,11 @@ Contributions *very welcome* but first see [Contributing](#contributing).
 - [TUFF](https://theupdateframework.io/security/) - We can think of a software update system as “secure” if:
 - [YubiKey](https://www.qubes-os.org/doc/yubikey/) - Most use cases for the YubiKey can be achieved exactly as described by the manufacturer or other instructions found online.
 
-## Desktop Customization
+## Customization
 
 - [AwesomeWM (window manager)](https://www.qubes-os.org/doc/awesomewm/) - This is an rpm package for awesomewm with the patches for Qubes.
 - [Brightness-Ajustment](https://forum.qubes-os.org/t/easy-brightness-adjustment/15902/2) - Easy brightness adjustment
-- [Bash completion](https://forum.qubes-os.org/docs?topic=19008) - How to install bash completion for Qubes OS commands.
+- [Bash completion](https://forum.qubes-os.org/docs?topic=13304) - How to install bash completion for Qubes OS commands.
 - [Custom icons](https://forum.qubes-os.org/t/where-is-the-most-optimal-place-to-put-custom-folder-icons/15740/3) - Place the custom folder icons ~/.local/share/icons is a persistent place to place the custom folder icons and so is /usr/share/icons.
 - [DPI scaling](https://forum.qubes-os.org/t/dpi-scaling/19064) - Qubes OS passes on dom0’s screen resolution to VMs (this can be seen in the output of xrandr) but doesn’t pass on dom0’s dpi value.
 - [i3 (window manager)](https://www.qubes-os.org/doc/i3/) - i3 is part of the stable repository (as of Qubes R3.1) and can be installed by using the dom0 update mechanism.