Update README.md

Author: GrahamCampbell

README.md

@@ -15,3 +15,16 @@ License
 -------
 
 Class Preloader is licensed under [The MIT License (MIT)](LICENSE).
+
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/packagist-classpreloader-classpreloader?utm_source=packagist-classpreloader-classpreloader&utm_medium=referral&utm_campaign=readme">Get professional support for Class Preloader with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>