[TASK] Update README.md

Author: simonschaufi

README.md

@@ -1,14 +1,20 @@
 # PHP KML parser
 
+[![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.me/simonschaufi/10)
+[![Latest Stable Version](https://poser.pugx.org/simonschaufi/php-libkml/v/stable)](https://packagist.org/packages/simonschaufi/php-libkml)
+[![Total Downloads](https://poser.pugx.org/simonschaufi/php-libkml/downloads)](https://packagist.org/packages/simonschaufi/php-libkml)
+[![License](https://poser.pugx.org/simonschaufi/php-libkml/license)](https://packagist.org/packages/simonschaufi/php-libkml)
+
 A php library to parse KML/KMZ files.
 
-php-libKML maps KML/KMZ xml data into PHP objects that follow the KML specification.
-The purpose of the library is to create KML file from code, parse KML files and convert to another format maintaining the complete KML information.
+php-libKML maps KML/KMZ data into PHP objects that follow the KML specification.
+The purpose of the library is to create KML file from code, parse KML files and
+convert to another format maintaining the complete KML information.
 
 ## Features
 
 * KML schema version 2.2
-* PHP 7.1+
+* PHP 7.4+
 * Composer integration
 * Object oriented design
 * Comprehensive KML model
@@ -26,26 +32,41 @@ Future features:
   * GeoJson
   * WKT
 
-## Installation
+## Usage
+
+### Installation
 
-It can be installed using composer.
+The recommended way to install the extension is using [Composer][1].
+
+Run the following command within your Composer based TYPO3 project:
 
 ```bash
 composer require simonschaufi/php-libkml
 ```
 
-## Usage
+### Contribution
 
-## Contribute
+**Pull Requests** are gladly welcome!
 
-Execute unit tests
+Please remember to add an issue and connect it to your pull requests.
+It is very helpful to understand what kind of issue the PR is going to solve.
+
+Bugfixes:
+
+Please describe what kind of bug your fix solves
+and give us feedback on how to reproduce the issue.
+We're going to accept only bugfixes if we can reproduce the issue.
+
+Execute unit tests:
 
 ```bash
 composer local:tests:unit
 ```
 
-Execute acceptance tests
+Execute acceptance tests:
 
 ```bash
 composer local:tests:acceptance
 ```
+
+[1]: https://getcomposer.org/