fix typo

app/Http/Kernel.php

@@ -29,7 +29,7 @@ class Kernel extends HttpKernel
             \Illuminate\Session\Middleware\StartSession::class,
             \Illuminate\View\Middleware\ShareErrorsFromSession::class,
             \App\Http\Middleware\VerifyCsrfToken::class,
-            \Illuminate\Routing\Middleware\SubstitutesBindings::class,
+            \Illuminate\Routing\Middleware\SubstituteBindings::class,
         ],
 
         'api' => [
@@ -48,7 +48,7 @@ class Kernel extends HttpKernel
     protected $routeMiddleware = [
         'auth' => \App\Http\Middleware\Authenticate::class,
         'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
-        'bindings' => \Illuminate\Routing\Middleware\SubstitutesBindings::class,
+        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
         'can' => \Illuminate\Foundation\Http\Middleware\Authorize::class,
         'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
         'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,