Merge pull request #11 from marineam/master

doc updates
fix(using-coreos): fix sudo command

the - from 'sudo su -' was missing and @jeremyvisser pointed out that
sudo -i is equivalent. Use that instead. Fixes #13
Merge pull request #14 from philips/fixup-sudo

fix(using-coreos): fix sudo command
fix(ec2): new 54.0.0 AMI
feat(*): lots of additions

We fell out of sync, sorry about that.
Added Arch install instructions
Merge pull request #15 from qjcg/patch-1

Added Arch install instructions
qemu: remove whitespace
Add openstack instruction

Bring instruction to import the coreos image into OpenStack
Merge pull request #16 from leseb/patch-1

Add openstack instruction
feat(openstack): add a bit more text into the docs
fix(openstack): add a booting section
fix(openstack): remove openstack from section name
fix(qemu): or instead of and
Systemd changes
docker changes
etcd changes
Intro changes + buttons
Remove version numbers
Merge pull request #17 from robszumski/systemd-clarification

Using CoreOS Updates