Issue #3337499: Update README.md file according to "README.md template"

README.MD

-CONTENTS OF THIS FILE
----------------------
+# Pusher API
 
-* Introduction
-* Requirements
-* Installation
-* Configuration
-* Maintainers
+This module connects Drupal and [Pusher](https://pusher.com/) to add
+realtime data.
 
-INTRODUCTION
-------------
+For now this module adds the option to trigger events in Pusher on
+node events. Think of node creation, updating and deleting.
 
-The Pusher API module provides a connection between Drupal and the Pusher API
-(www.pusher.com).
+For a full description of the module, visit the
+[project page](https://www.drupal.org/project/pusher_api).
 
-* For a full description of the module, visit the project page:
-  https://www.drupal.org/project/pusher_api
+Submit bug reports and feature suggestions, or track changes in the
+[issue queue](https://www.drupal.org/project/issues/pusher_api).
 
-* To submit bug reports and feature suggestions, or track changes:
-  https://www.drupal.org/project/issues/pusher_api
 
-REQUIREMENTS
-------------
+## Table of contents
+
+- Requirements
+- Installation
+- Configuration
+- Maintainers
+
+
+## Requirements
 
 This module requires no modules outside of Drupal core.
 
 
-INSTALLATION
-------------
+## Installation
+
+Install as you would normally install a contributed Drupal module. For further
+information, see
+[Installing Drupal Modules](https://www.drupal.org/docs/extending-drupal/installing-drupal-modules).
 
-* Install as you would normally install a contributed Drupal module. Visit
-  https://www.drupal.org/node/1897420 for further information.
 
-CONFIGURATION
--------------
+## Configuration
 
 1. Go to www.pusher.com and create a new app.
 2. Find you app keys and add them to the settings.php
@@ -44,24 +45,23 @@ CONFIGURATION
     $settings['pusher_api']['api_settings']['cluster'] = 'cluster';
     ```
 3. Navigate to Administration > Extend and enable the module.
-4. Navigate to Administration > Configuration > Webservices > Pusher API for configurations. Save Configurations.
+4. Navigate to Administration > Configuration > Webservices >
+   Pusher API for configurations. Save Configurations.
 
-Configurable parameters:
+**Configurable parameters:**
 
-* Default channel name
-* Send triggers to Pusher for node events (creation, updating and deleting of nodes)
+- Default channel name
+- Send triggers to Pusher for node events (creation, updating and deleting of nodes)
 
-HOOKS
------
+**Hooks**
 
 This modules implements some custom hooks. You can find them in pusher_api.api.php
 
 
-MAINTAINERS
------------
+## Maintainers
 
-* Fabian de Rijk - https://www.drupal.org/u/fabianderijk
+- Fabian de Rijk - [fabianderijk](https://www.drupal.org/u/fabianderijk)
 
-Supporting organization:
+**Supporting organization:**
 
-* Finalist - https://www.drupal.org/finalist
\ No newline at end of file
+- [Finalist](https://www.drupal.org/finalist)