Update README with new information, requirements and purpose.

README

@@ -1,27 +1,48 @@
-Usage example:
+# Arch Linux Appliance Builder
 
-1) Create an aab.conf file describing your template.
+This is a fork of [Proxmox AAB project](https://git.proxmox.com/) with the goal of building an updated Arch Linux LXC template for use with PVE, also to prevent removal of `pacman keyring`; disable `systemd-resolved` and enable `sshd`.
 
---- Example aab.conf:
-Name: base
-Version: 2015-08-21-1
-Section: optional
-Maintainer: Your Name
-Headline: ArchLinux base image.
-Architecture: x86_64
-Source: http://archlinux.cu.be/$repo/os/$arch
---- End of example
+## Requirements for building
+The best way to build this template is running inside of an Arch Linux environment and will need the following packages: **`lxc make perl-uuid`**
 
-2) Run as root:
+Also to prevent an error when starting the container, you need to enable devices cgroup since LXC will apply [device cgroup limits](https://github.com/lxc/lxc/issues/2268#issuecomment-380019126).
 
-  # ./aab init
-  # ./aab bootstrap
+```Shell
+mount -o remount,rw /sys/fs/cgroup
+mkdir /sys/fs/cgroup/devices
+mount -t cgroup devices -o devices /sys/fs/cgroup/devices
+mount -o remount,ro /sys/fs/cgroup
+```
 
-3) Maybe install additional packages
+## To enable/disable services and install additional packages
 
-  # ./aab install base-devel
+Go to the file `PVE/AAB.pm` and search for the following lines:
+- Add new packages: `my @BASE_PACKAGES`
+- Disable service: `print "Masking problematic systemd units...\n";`
+- Enable serivce: `print "Enable systemd services...\n";`
 
-4) Create the archive and clean up:
+## Usage
 
-  # ./aab finalize
-  # ./aab cleanup
+### with Make
+  - `make aab.conf`
+  - run as root `make build-current`
+  - go drink mate or kofi while is creating and compacting the template
+  - when done will have the following file `archlinux-base_${DATE}-1_${ARCH}.tar.zst`
+  - upload to your PVE and enjoy~
+
+### or step by step
+
+### 1. Create an aab.conf file describing your template.
+  - `make aab.conf`
+  - edit the source argument inside of `aab.conf` and change to a mirror of your choice
+
+### 2. Run as root:
+  - `./aab init`
+  - `./aab bootstrap`
+
+### 3. Maybe install additional packages
+  - `./aab install base-devel`
+
+### 4. Create the archive and clean up:
+  - `./aab finalize`
+  - `./aab cleanup`