vanilla: mention some features in README.

README

@@ -10,6 +10,28 @@ in many ways, currently there are 1500 packages in this repository that you can
 build. There is support for i686 and x86_64 architectures, more
 could be added in a future (arm) but it's not a high priority.
 
+Some features:
+ - Rolling release.
+ - Uses the latest stable Linux kernel, development snapshot from kernel.org
+   can also be installed in parallel.
+ - Kernel images/modules aren't never removed to always have a bootable system.
+ - Uses a modified "initramfs-tools" version from Debian to handle initial
+   ramdisk images.
+ - Uses a modified "casper" version from Ubuntu to create Live images.
+ - Uses a modified "OpenRC" version from Gentoo to handle init/boot process.
+ - Uses /run directory as tmpfs by default, with symlinks to /tmp, /var/tmp,
+   /var/lock, /var/run, /dev/shm.
+ - It's not a fork or customized version of any distro, it has been created
+   from scratch and making it a lightweight alternative. Base system takes
+   150MB approximately.
+ - Uses its own binary package system: XBPS. It's a fast alternative to Debian's
+   dpkg/apt, RedHat's RPM, ArchLinux' pacman, etc.
+ - Uses a BSD port-like system to build binary packages in chroot jails,
+   without requiring root permissions. Use your ordinary user and don't mess
+   with your real system!
+ - You don't need wrappers to wrappers to the XBPS utils to rebuild/reinstall
+   packages. The provided tools is all what you need.
+
 When a new XBPS stable version comes out, a new live image is created for
 testing purposes with the minimal base system, you can find them at: