ec2.md in beaker-aws-0.4.0 vs ec2.md in beaker-aws-0.5.0

- old
+ new

@@ -32,10 +32,20 @@
         user: ec2-user
     CONFIG:
       nfs_server: none
       consoleport: 443
 
+### Using role  
+*(If you'd like to use instance role you can disable reading fog credentials)*
+
+#### No fog file needed ####
+#### Update CONFIG section of ec2 hosts file ####
+    CONFIG:
+      use_fog_credentials: false
+
+
+
 Currently, there is limited support EC2 nodes; we are adding support for new platforms shortly.
 
 AMIs are built for PE based installs on:
   - Enterprise Linux 6, 64 and 32 bit
   - Enterprise Linux 5, 32 bit
@@ -43,10 +53,11 @@
 
 Beaker will automagically provision EC2 nodes, provided the 'platform:' section of your config file lists a supported platform type: ubuntu-10.04-i386, el-6-x86_64, el-6-i386, el-5-i386.
 
 ### Supported EC2 Variables ###
 These variables can either be set per-host or globally.
+
 ####`additional_ports`####
 Ports to be opened on the instance, in addition to those opened by Beaker to support Puppet functionality.  Can be a single value or an array.  Example valid values: 1001, [1001], [1001, 1002].
 
 Ports opened by default:
 * all hosts have [22, 61613, 8139] opened
@@ -65,16 +76,18 @@
 If defined the instace will be crated in one of the provided array of EC2 subnets.  `vpc_id` must be defined.  Cannot be defined at the same time as `subnet_id`.
 ####`vmname`####
 Used to look up the pre-defined AMI information in `config/image_templates/ec2.yaml`.  Will default to `platform` if not defined.
 #####Example ec2.yaml#####
 In this example the `vmname` would be `puppetlabs-centos-5-x86-64-west`.  Looking up the `vmname` in the `ec2.yaml` file provides an AMI ID by type (`pe` or `foss`) and the region.
+
 ```
 AMI:
   puppetlabs-centos-5-x86-64-west:
     :image:
       :pe: ami-pl-12345
     :region: us-west-2
 ```
+
 ####`volume_size`####
 Size of the [EBS Volume](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumes.html) that will be attached to the EC2 instance.
 ####`vpc_id`####
 ID of the [VPC](https://aws.amazon.com/vpc/) to create the instances in.  If not provided will either use the default VPC for the provided region (marked as `isDefault`), otherwise falls back to `nil`.  If subnet information is provided (`subnet_id`/`subnet_ids`) this must be defined.
 ####`user`####