Update README.md

Author: JulianPrieber

README.md

@@ -353,15 +353,19 @@ You can support LittleLink Custom [here](https://littlelink-custom.com/sponsor).
 
 Thank you for improving LittleLink Custom!
 
-
+<p>
+  <a href="https://github.com/JulianPrieber/littlelink-custom/graphs/contributors"><img src="https://components.littlelink-custom.com/contributors/" alt="Contributors" width="600" ></a>
+</p>
 
 <br>
 
 ### Beta Testers
 
 Thank you for all your efforts!
 
-
+<p>
+  <a href="https://littlelink-custom.com/beta-tester"><img src="https://components.littlelink-custom.com/beta-testers/" alt="Contributors" width="600" ></a>
+</p>
 
 [Become a beta tester](https://littlelink-custom.com/beta-tester)