Fixes broken RST links; clarifies AWS instructions

docs/sources/installation/amazon.rst

@@ -22,24 +22,34 @@ Amazon QuickStart
 
 1. **Choose an image:**
 
-   * Launch the `Create Instance Wizard`
-     <https://console.aws.amazon.com/ec2/v2/home?#LaunchInstanceWizard:> menu on
-     your AWS Console
+   * Launch the `Create Instance Wizard
+     <https://console.aws.amazon.com/ec2/v2/home?#LaunchInstanceWizard:>`_ menu
+     on your AWS Console.
 
-   * Select "Community AMIs" option and serch for ``amd64 precise`` (click enter
-     to search)
+   * When picking the source AMI for your instance type, select "Community
+     AMIs".
 
-   * If you choose a EBS enabled AMI you will be able to launch a `t1.micro`
-     instance (more info on `pricing` <http://aws.amazon.com/en/ec2/pricing/> )
+   * Search for ``amd64 precise``. Pick one of the amd64 Ubuntu images.
+
+   * If you choose a EBS enabled AMI, you'll also be able to launch a
+     ``t1.micro`` instance (more info on `pricing
+     <http://aws.amazon.com/en/ec2/pricing/>`_).  ``t1.micro`` instances are
+     eligible for Amazon's Free Usage Tier.
 
    * When you click select you'll be taken to the instance setup, and you're one
      click away from having your Ubuntu VM up and running.
 
 2. **Tell CloudInit to install Docker:**
 
+   * When you're on the "Configure Instance Details" step, expand the "Advanced
+     Details" section.
+
+   * Under "User data", select "As text".
+
    * Enter ``#include https://get.docker.io`` into the instance *User Data*.
      `CloudInit <https://help.ubuntu.com/community/CloudInit>`_ is part of the
-     Ubuntu image you chose and it bootstraps from this *User Data*.
+     Ubuntu image you chose; it will bootstrap Docker by running the shell
+     script located at this URL.
 
 3. After a few more standard choices where defaults are probably ok, your AWS
    Ubuntu instance with Docker should be running!
@@ -159,7 +169,7 @@ Docker that way too. Vagrant 1.1 or higher is required.
    includes rights to SSH (port 22) to your container.
 
    If you have an advanced AWS setup, you might want to have a look at
-   https://github.com/mitchellh/vagrant-aws
+   `vagrant-aws <https://github.com/mitchellh/vagrant-aws>`_.
 
 7. Connect to your machine