feat(example): example done

src/App.tsx

@@ -1,10 +1,27 @@
+import { useState } from 'react';
 import './App.css';
 import { Parent } from './children-render/parent';
+import { ParentFixed } from './children-render-fixed/parent-fixed';
+import { FamilyContextProvider } from './children-render-fixed/family-context';
 
 const App = () => {
+  const [version, setVersion] = useState<'normal' | 'fixed'>('normal');
+
   return (
     <div className="content">
-      <Parent />
+      <button
+        className="version__toggle"
+        onClick={() => setVersion(version === 'normal' ? 'fixed' : 'normal')}
+      >
+        Go to {version === 'normal' ? 'fixed' : 'normal'}
+      </button>
+      {version === 'normal' ? (
+        <Parent />
+      ) : (
+        <FamilyContextProvider>
+          <ParentFixed />
+        </FamilyContextProvider>
+      )}
     </div>
   );
 };