Install help and uninstall routine.

node_authlink.info

 name = Node authorize link
 description = Generates link for view, edit, or delete node without login.
 dependencies[] = computed_field
+version = 7.x-1.0
 core = 7.x
 files[] = node_authlink.module
\ No newline at end of file

node_authlink.install

+<?php
+// $Id$
+
+/**
+ * Inplementation of hook_install.
+ */
+function node_authlink_install() {
+  drupal_set_message(t('To setup Node authorize link module go to Structure → Node types → edit → Node authorize link.'));
+}
+
+/**
+ * Inplementation of hook_uninstall.
+ */
+function node_authlink_uninstall() {
+  field_delete_field('field_node_authlink_authkey');
+}
\ No newline at end of file

node_authlink.module

 <?php
 // $Id$
 
-/**
- * @file
- * TODO: Enter file description here.
- */
-
 /**
  * Alter of node_type_form.
  */
 function node_authlink_form_node_type_form_alter(&$form, &$form_state) {
   $form['node_authlink'] = array(
     '#type' => 'fieldset',
-    '#title' => t('Node Auth Key'),
+    '#title' => t('Node authorize link'),
     '#collapsible' => TRUE,
     '#collapsed' => TRUE,
     '#group' => 'additional_settings',
@@ -104,7 +99,7 @@ function node_authlink_create_field_instance($node_type, $grants) {
   }
   
   $instance = array(
-    'label' => 'Node access link',
+    'label' => 'Node authorize key',
     'widget' => array(
       'type' => 'computed',
       'weight' => '1',