Update README.md

Author: marickvantuil

README.md

@@ -30,7 +30,7 @@ Please check the table below for supported Laravel and PHP versions:
 | 5.8 | 7.2 or 7.3 or 7.4
 | 6.x | 7.2 or 7.3 or 7.4 or 8.0
 | 7.x | 7.2 or 7.3 or 7.4 or 8.0
-| 8.x | 7.3 or 7.4 or 8.0
+| 8.x | 7.3 or 7.4 or 8.0 or 8.1
 
 # Installation