docs: added missing shell argument to autocompletion snippet
The documentation's snippet was missing the shell argument, so
the code was not working if added to the .bash_profile.
@@ -25,7 +25,7 @@ The completion Bash script depends on [bash-completion](https://github.com/scop/
if [ -f /usr/local/share/bash-completion/bash_completion ]; then
. /usr/local/share/bash-completion/bash_completion
fi
-. <(kubebuilder completion)
+. <(kubebuilder completion bash)
```
- Restart terminal for the changes to be reflected.
