Update FilamentServiceProvider.php (alexjustesen#135)

Author: joaogalaghar

app/Providers/FilamentServiceProvider.php

@@ -38,7 +38,7 @@ public function boot()
             ]);
 
             Filament::registerNavigationItems([
-                NavigationItem::make('Documenation')
+                NavigationItem::make('Documentation')
                     ->url('https://docs.speedtest-tracker.dev/', shouldOpenInNewTab: true)
                     ->icon('heroicon-o-external-link')
                     ->group('Links')