docs: add simple anti-bot examples

- Add simple_anti_bot_examples.py with minimal code examples
- Demonstrates stealth mode, undetected browser, and combined usage
- Clean examples without logging for easy reference

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/examples/simple_anti_bot_examples.py

@@ -0,0 +1,59 @@
+import asyncio
+from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig, UndetectedAdapter
+from crawl4ai.async_crawler_strategy import AsyncPlaywrightCrawlerStrategy
+
+# Example 1: Stealth Mode
+async def stealth_mode_example():
+    browser_config = BrowserConfig(
+        enable_stealth=True,
+        headless=False
+    )
+    
+    async with AsyncWebCrawler(config=browser_config) as crawler:
+        result = await crawler.arun("https://example.com")
+        return result.html[:500]
+
+# Example 2: Undetected Browser
+async def undetected_browser_example():
+    browser_config = BrowserConfig(
+        headless=False
+    )
+    
+    adapter = UndetectedAdapter()
+    strategy = AsyncPlaywrightCrawlerStrategy(
+        browser_config=browser_config,
+        browser_adapter=adapter
+    )
+    
+    async with AsyncWebCrawler(
+        crawler_strategy=strategy,
+        config=browser_config
+    ) as crawler:
+        result = await crawler.arun("https://example.com")
+        return result.html[:500]
+
+# Example 3: Both Combined
+async def combined_example():
+    browser_config = BrowserConfig(
+        enable_stealth=True,
+        headless=False
+    )
+    
+    adapter = UndetectedAdapter()
+    strategy = AsyncPlaywrightCrawlerStrategy(
+        browser_config=browser_config,
+        browser_adapter=adapter
+    )
+    
+    async with AsyncWebCrawler(
+        crawler_strategy=strategy,
+        config=browser_config
+    ) as crawler:
+        result = await crawler.arun("https://example.com")
+        return result.html[:500]
+
+# Run examples
+if __name__ == "__main__":
+    asyncio.run(stealth_mode_example())
+    asyncio.run(undetected_browser_example())
+    asyncio.run(combined_example())