[docs] Fix stylesheet URL

Author: Breakthrough

docs/index.html

@@ -4,7 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>opencv-python-cuda | Download</title>
-    <link rel="stylesheet" href="styles.css">
+    <link rel="stylesheet" href="style.css">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link href="https://fonts.googleapis.com/css2?family=Noto+Sans:wght@300;400;500;700&display=swap" rel="stylesheet">