anchor.diff:  * The `default_security_groups` option set the security groups used by Micro BOSH. The `microbosh_security_group` **must** be an existing security group (check the [prerequisites](#openstack_security_groups) section).
   * The `default_key_name` and `private_key` options sets the key pair used by Micro BOSH. The `microbosh_keypair` **must** be an existing keypair (check the [prerequisites](#openstack_keypairs) section).
   
  -### <a id="vSphere"></a> vSphere ###
  +### <a id="ex-vSphere"></a> vSphere ###
   
   Explanatory comments follow this example.
   
  
positive.code: 
  These examples are designed to illuminate what each IaaS requires in a MicroBOSH deployment manifest.
  
  ### <a id="aws"></a> AWS ###
  
  ~~~yaml
  name: microbosh
  
negative.code: Parts of the manifest are IaaS-specific.
  Refer to the example for the IaaS you plan to use:
  
  * [AWS](#ex-aws)
  * [OpenStack](#ex-openstack)
  * [vSphere](#ex-vsphere)
  
  ## <a id="anatomy"></a> Anatomy of a Manifest ##
  
  