Some fixes

examples/App.tsx

@@ -9,7 +9,7 @@ function App() {
 
   // Demo video URLs (you can replace with your own)
   const demoVideoUrl = '/player/ses.mp4'
-  const demoPoster = '/player/ses_duzeltilmis.srt'
+  const demoPoster = '/player/poster.svg'
 
   const demoSubtitles: SubtitleTrack[] = [
     {
@@ -129,7 +129,7 @@ function App() {
 
       <footer className="app-footer">
         <p>Built with React, TypeScript, and Vite</p>
-        <p>Zero runtime dependencies • ~8KB gzipped</p>
+        <p>Zero runtime dependencies • ~18KB gzipped core JS</p>
       </footer>
     </div>
   )