moving parameters into appropriate place, adding meaning unit test, first pass on reference file, expanding acceptance test to include meaningful example

using codename as release

REFERENCE.md

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+# Reference
+
+<!-- DO NOT EDIT: This document was generated by Puppet Strings -->
+
+## Table of Contents
+
+### Classes
+
+* [`hashi_stack::repo`](#hashi_stackrepo): Set up the package repository for the HashiCorp Stack components
+
+## Classes
+
+### `hashi_stack::repo`
+
+This class installs the hashicorp repository
+
+#### Examples
+
+##### 
+
+```puppet
+include hashi_stack::repo
+```
+
+##### 
+
+```puppet
+class { 'hashi_stack::repo': } -> package { 'packer': ensure => installed }
+```
+
+#### Parameters
+
+The following parameters are available in the `hashi_stack::repo` class.
+
+##### `priority`
+
+Data type: `Optional[Integer]`
+
+A numeric priority for the repo, passed to the package management system
+
+Default value: ``undef``
+
+##### `proxy`
+
+Data type: `String`
+
+The URL of a HTTP proxy to use for package downloads (YUM only)
+
+Default value: `'absent'`
+
+##### `key_id`
+
+Data type: `String`
+
+GPG key to authenticate Apt package signatures.
+
+Default value: `'E8A032E094D8EB4EA189D270DA418C88A3219F7B'`
+
+##### `key_source`
+
+Data type: `Stdlib::HTTPSUrl`
+
+The location of an existing GPG key file to copy.
+
+Default value: `'https://apt.releases.hashicorp.com/gpg'`
+
+##### `description`
+
+Data type: `String`
+
+Repository description
+
+Default value: `'HashiCorp package repository.'`
+