Add 'support us' section to Readme

Author: akoepcke

README.md

@@ -14,14 +14,6 @@ More on the Robots meta tag: https://developers.google.com/webmasters/control-cr
 
 Spatie is a webdesign agency based in Antwerp, Belgium. You'll find an overview of all our open source projects [on our website](https://spatie.be/opensource).
 
-## Postcardware
-
-You're free to use this package (it's [MIT-licensed](LICENSE.md)), but if it makes it to your production environment you are required to send us a postcard from your hometown, mentioning which of our package(s) you are using.
-
-Our address is: Spatie, Samberstraat 69D, 2060 Antwerp, Belgium.
-
-The best postcards will get published on the open source page on our website.
-
 ## Installation
 
 You can install the package via composer:
@@ -87,14 +79,26 @@ Please see [CONTRIBUTING](CONTRIBUTING.md) for details. Due to nature of this pa
 
 If you discover any security related issues, please email [email protected] instead of using the issue tracker.
 
+## Postcardware
+
+You're free to use this package, but if it makes it to your production environment we highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using.
+
+Our address is: Spatie, Samberstraat 69D, 2060 Antwerp, Belgium.
+
+We publish all received postcards [on our company website](https://spatie.be/en/opensource/postcards).
+
 ## Credits
 
 - [Sebastian De Deyne](https://github.com/sebastiandedeyne)
 - [All Contributors](../../contributors)
 
-## About Spatie
+## Support us
+
 Spatie is a webdesign agency based in Antwerp, Belgium. You'll find an overview of all our open source projects [on our website](https://spatie.be/opensource).
 
+Does your business depend on our contributions? Reach out and support us on [Patreon](https://www.patreon.com/spatie). 
+All pledges will be dedicated to allocating workforce on maintenance and new awesome stuff.
+
 ## License
 
 The MIT License (MIT). Please see [License File](LICENSE.md) for more information.