rename: Playground → HTML & CSS Editor, Hello! → Getting started!

lessons/00-welcome.json

@@ -9,7 +9,7 @@
 	"lessons": [
 		{
 			"id": "hello",
-			"title": "Hello!",
+			"title": "Getting started!",
 			"description": "<strong>Welcome to Code Crispies!</strong> Learn CSS and HTML through hands-on exercises.<br><br><strong>How it works:</strong><br>1. Read the task on the left<br>2. Write code in the editor<br>3. See live results in the preview<br><br><strong>Tips:</strong> Use <kbd>Ctrl+Z</kbd> to undo. Open the menu (☰) to browse all modules.",
 			"task": "Write <code>Hello World</code> to get started",
 			"previewHTML": "",

lessons/98-playground.json

@@ -1,7 +1,7 @@
 {
 	"$schema": "../schemas/code-crispies-module-schema.json",
 	"id": "playground",
-	"title": "Playground",
+	"title": "HTML & CSS Editor",
 	"description": "Experiment freely with HTML and CSS",
 	"mode": "playground",
 	"difficulty": "beginner",
@@ -9,7 +9,7 @@
 	"lessons": [
 		{
 			"id": "sandbox",
-			"title": "Free Coding",
+			"title": "Editor",
 			"mode": "playground",
 			"description": "",
 			"task": "",