mitchellh/vagrant-aws — pull request #236 by yuma-iwasaki (2014-05-26 12:52:45+00:00)
Title: Update README.md 

README.md
add Configuration block_device_mapping

Amazon EC2 Block Device Mapping Property
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-blockdev-mapping.html

- example

```Vagrantfile
aws.block_device_mapping = [
{
# デバイス名
'DeviceName' => "/dev/sda1",
'VirtualName' => "volume_name",
'Ebs.VolumeSize' => 100,
'Ebs.DeleteOnTermination' => true,
'Ebs.VolumeType' => 'standard',
}
]
```