Add example migration file

Author: relliv

resources/stubs/install/Con_database/migrations/.gitkeep

@@ -0,0 +1,32 @@
+@php
+    echo '<?php'
+@endphp
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('examples', function (Blueprint $table) {
+            $table->id();
+
+            // ...
+
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('examples');
+    }
+};