serveral changes to improve legibility

README.md

@@ -5,11 +5,33 @@ Use cloud images on baremetal using libvirt/kvm
 - openssh
 - mkpass (whois)
 - arp
+
 ## Links
 - [https://blog.programster.org/create-debian-12-kvm-guest-from-cloud-image](https://blog.programster.org/create-debian-12-kvm-guest-from-cloud-image)
 - [https://earlruby.org/2023/02/quickly-create-guest-vms-using-virsh-cloud-image-files-and-cloud-init/](https://earlruby.org/2023/02/quickly-create-guest-vms-using-virsh-cloud-image-files-and-cloud-init/)
 - [https://sumit-ghosh.com/posts/create-vm-using-libvirt-cloud-images-cloud-init/)](https://sumit-ghosh.com/posts/create-vm-using-libvirt-cloud-images-cloud-init/)
 
+## Preparing host
+
+### Create bridge network
+
+```shell
+sudo virsh --connect qemu:///session net-define /dev/stdin << EOF
+<network>
+  <name>bridged-network</name>
+  <forward mode='bridge'/>
+  <bridge name='brbackend' />
+</network>
+EOF
+```
+
+#### AppArmor exception
+
+```shell
+ln -s /etc/apparmor.d/usr.sbin.libvirtd /etc/apparmor.d/disable/
+apparmor_parser -R /etc/apparmor.d/usr.sbin.libvirtd
+```
+
 ## Creating VMs
 ### Usage
 ```shell