Issue #3339852 by Jay Jangid, nilesh.addweb, raubi gaur: Update README.md file...

Issue #3339852 by Jay Jangid, nilesh.addweb, raubi gaur: Update README.md file according to "README.md template"

README.md

-CONTENTS OF THIS FILE
----------------------
+# Bundle Reference
 
- * Introduction
- * Requirements
- * Installation
- * Configuration
- * Maintainers
+Bundle Reference module adds a new bundle reference field type,
+widget and formatter.
 
+For a full description of the module, visit the
+[project page](https://www.drupal.org/project/bundle_reference).
 
-INTRODUCTION
-------------
+Submit bug reports and feature suggestions, or track changes in the
+[issue queue](https://www.drupal.org/project/issues/bundle_reference).
 
-Adds a new bundle reference field type, widget and formatter.
 
- * For a full description of the module, visit the project page:
-   https://www.drupal.org/project/bundle_reference
+## Table of contents
 
- * To submit bug reports and feature suggestions, or to track changes:
-   https://www.drupal.org/project/issues/bundle_reference
+- Requirements
+- Installation
+- Configuration
+- Maintainers
 
 
-REQUIREMENTS
-------------
+## Requirements
 
 This module requires no modules outside of Drupal core.
 
 
-INSTALLATION
-------------
+## Installation
 
- * Install the Bundle Reference module as you would normally install a
-   contributed Drupal module. Visit https://www.drupal.org/node/1897420 for
-   further information.
+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).
 
 
-CONFIGURATION
--------------
+## Configuration
 
-    1. Navigate to Administration > Extend and enable the module.
-    2. Navigate to Administration > Structure > Content types > [Content type to
-       create or edit] and add a new field.
-    3. There is now a "Bundle Reference" field in the dropdown.
-    4. Chose which bundles to reference. Save Settings.
+1. Navigate to Administration > Extend and enable the module.
+2. Navigate to Administration > Structure > Content types > [Content type to
+   create or edit] and add a new field.
+3. There is now a "`Bundle Reference`" field in the dropdown.
+4. Chose which bundles to reference. Save Settings.
 
 
-MAINTAINERS
------------
+## Maintainers
 
- * Marcin Grabias (Graber) - https://www.drupal.org/u/graber
+- Marcin Grabias - [Graber](https://www.drupal.org/u/graber)
+- Attila Santo-Rieder - [attisan](https://www.drupal.org/u/attisan)
+- Pinesh Patel - [Pinesh](https://www.drupal.org/u/pinesh)