Support laravel8

Author: jsiefer

composer.json

@@ -11,7 +11,7 @@
     ],
     "minimum-stability": "stable",
     "require": {
-        "laravel/framework": "^7.0",
+        "laravel/framework": "^7.0 || ^8.0",
         "typesetsh/typesetsh": "^0.11"
     },
     "require-dev": {