Issue #3335793: Update README.md file according to "README.md template"

README.md

-CONTENTS OF THIS FILE
----------------------
-
-* Introduction
-* Requirements
-* Installation
-* Configuration
-* FAQ
-* Maintainers
-
-INTRODUCTION
-------------
+# User Expire
 
 The User Expire module allows an administrator to define a date on which to
 expire a specific user account or to define a period at a role level where
 inactive accounts will be locked.
 
-* For a full description of the module, visit the project page:
-  https://www.drupal.org/project/user_expire
+For a full description of the module, visit the
+[project page](https://www.drupal.org/project/user_expire)
+
+To submit bug reports and feature suggestions, or track changes
+[issue queue](https://www.drupal.org/project/issues/user_expire)
+
+
+## Table of contents
 
-* To submit bug reports and feature suggestions, or track changes:
-  https://www.drupal.org/project/issues/user_expire
+- Requirements
+- Installation
+- Configuration
+- FAQ
+- Maintainers
 
-REQUIREMENTS
-------------
+
+## Requirements
 
 This module requires no modules outside of Drupal core.
 
-INSTALLATION
-------------
 
-* Install as you would normally install a contributed Drupal module. Visit
-  https://www.drupal.org/node/1897420 for further information.
+## Installation
+
+Install as you would normally install a contributed Drupal module. Visit
+[Installing Drupal Modules](https://www.drupal.org/docs/extending-drupal/installing-drupal-modules)
+for further information.
+
+
+## Configuration
 
-CONFIGURATION
--------------
+- Configure the user expire settings in
 
-* Configure the user expire settings in
-Administration » Configuration » People » User expire:
+  `Administration » Configuration » People » User expire`:
 
-  - Set the frequency time in seconds
+    - Set the frequency time in seconds
 
-    The frequency time is the time set for how often to run warns users with an
-upcoming expiration by roles
+      The frequency time is the time set for how often to run warns users with
+      an upcoming expiration by roles
 
-  - Set the warning offset time in seconds
+    - Set the warning offset time in seconds
 
-    The warning offset is how long before the account expires is the first
-warning sent.
+      The warning offset is how long before the account expires is the first
+      warning sent.
 
-  - Set seconds of inactivity before expiring for each role within your system
+    - Set seconds of inactivity before expiring for each role within your system
 
-    Each role can be set to a different expiration time with 0 set for roles
-that will not be expired.
+      Each role can be set to a different expiration time with 0 set for roles
+      that will not be expired.
 
 
-FAQ
----
+## FAQ
 
 If you need to unblock a user from the command line, you can use Drush or a SQL
-query. Visit https://www.drupal.org/node/947312 for further information.
+query. Visit [Securing user #1](https://www.drupal.org/node/947312) for further
+information.
 
 
-MAINTAINERS
------------
+## Maintainers
 
-Current maintainers:
-* Erik Webb (erikwebb) - https://www.drupal.org/u/erikwebb
-* Greg Knaddison (greggles) - https://www.drupal.org/u/greggles
-* Shelane French (shelane) - https://www.drupal.org/u/shelane
+- Erik Webb - [erikwebb](https://www.drupal.org/u/erikwebb)
+- Greg Knaddison - [greggles](https://www.drupal.org/u/greggles)
+- Shelane French - [shelane](https://www.drupal.org/u/shelane)