Beispiel korrigiert

README.md

@@ -31,11 +31,14 @@ fn main() {
     while !p.should_close() {
         p.poll_events(None);
 
+        // drain_events() borrowt &mut self → close erst nach dem Loop setzen.
+        let mut close = false;
         for ev in p.drain_events() {
             if let Event::Key { key: Key::Escape, pressed: true, .. } = ev {
-                p.request_close();
+                close = true;
             }
         }
+        if close { p.request_close(); }
 
         let (w, _h) = p.framebuffer_size();
         let fb = p.framebuffer_mut();