Fix loaders.py broken YouTube example URLs (#15863)

Signed-off-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

docs/en/datasets/explorer/explorer.ipynb

@@ -10,7 +10,7 @@
         "# VOC Exploration Example\n",
         "<div align=\"center\">\n",
         "\n",
-        "  <a href=\"https://ultralytics.com/yolov8\" target=\"_blank\">\n",
+        "  <a href=\"https://ultralytics.com/yolo\" target=\"_blank\">\n",
         "    <img width=\"1024\", src=\"https://raw.githubusercontent.com/ultralytics/assets/main/yolov8/banner-yolov8.png\"></a>\n",
         "\n",
         "  [中文](https://docs.ultralytics.com/zh/) | [한국어](https://docs.ultralytics.com/ko/) | [日本語](https://docs.ultralytics.com/ja/) | [Русский](https://docs.ultralytics.com/ru/) | [Deutsch](https://docs.ultralytics.com/de/) | [Français](https://docs.ultralytics.com/fr/) | [Español](https://docs.ultralytics.com/es/) | [Português](https://docs.ultralytics.com/pt/) | [Türkçe](https://docs.ultralytics.com/tr/) | [Tiếng Việt](https://docs.ultralytics.com/vi/) | [العربية](https://docs.ultralytics.com/ar/)\n",

examples/heatmaps.ipynb

@@ -8,7 +8,7 @@
    "source": [
     "<div align=\"center\">\n",
     "\n",
-    "  <a href=\"https://ultralytics.com/yolov8\" target=\"_blank\">\n",
+    "  <a href=\"https://ultralytics.com/yolo\" target=\"_blank\">\n",
     "    <img width=\"1024\", src=\"https://raw.githubusercontent.com/ultralytics/assets/main/yolov8/banner-yolov8.png\"></a>\n",
     "\n",
     "  [中文](https://docs.ultralytics.com/zh/) | [한국어](https://docs.ultralytics.com/ko/) | [日本語](https://docs.ultralytics.com/ja/) | [Русский](https://docs.ultralytics.com/ru/) | [Deutsch](https://docs.ultralytics.com/de/) | [Français](https://docs.ultralytics.com/fr/) | [Español](https://docs.ultralytics.com/es/) | [Português](https://docs.ultralytics.com/pt/) | [Türkçe](https://docs.ultralytics.com/tr/) | [Tiếng Việt](https://docs.ultralytics.com/vi/) | [العربية](https://docs.ultralytics.com/ar/)\n",

examples/object_counting.ipynb

@@ -8,7 +8,7 @@
    "source": [
     "<div align=\"center\">\n",
     "\n",
-    "  <a href=\"https://ultralytics.com/yolov8\" target=\"_blank\">\n",
+    "  <a href=\"https://ultralytics.com/yolo\" target=\"_blank\">\n",
     "    <img width=\"1024\", src=\"https://raw.githubusercontent.com/ultralytics/assets/main/yolov8/banner-yolov8.png\"></a>\n",
     "\n",
     "  [中文](https://docs.ultralytics.com/zh/) | [한국어](https://docs.ultralytics.com/ko/) | [日本語](https://docs.ultralytics.com/ja/) | [Русский](https://docs.ultralytics.com/ru/) | [Deutsch](https://docs.ultralytics.com/de/) | [Français](https://docs.ultralytics.com/fr/) | [Español](https://docs.ultralytics.com/es/) | [Português](https://docs.ultralytics.com/pt/) | [Türkçe](https://docs.ultralytics.com/tr/) | [Tiếng Việt](https://docs.ultralytics.com/vi/) | [العربية](https://docs.ultralytics.com/ar/)\n",

examples/object_tracking.ipynb

@@ -8,7 +8,7 @@
    "source": [
     "<div align=\"center\">\n",
     "\n",
-    "  <a href=\"https://ultralytics.com/yolov8\" target=\"_blank\">\n",
+    "  <a href=\"https://ultralytics.com/yolo\" target=\"_blank\">\n",
     "    <img width=\"1024\", src=\"https://raw.githubusercontent.com/ultralytics/assets/main/yolov8/banner-yolov8.png\"></a>\n",
     "\n",
     "  [中文](https://docs.ultralytics.com/zh/) | [한국어](https://docs.ultralytics.com/ko/) | [日本語](https://docs.ultralytics.com/ja/) | [Русский](https://docs.ultralytics.com/ru/) | [Deutsch](https://docs.ultralytics.com/de/) | [Français](https://docs.ultralytics.com/fr/) | [Español](https://docs.ultralytics.com/es/) | [Português](https://docs.ultralytics.com/pt/) | [Türkçe](https://docs.ultralytics.com/tr/) | [Tiếng Việt](https://docs.ultralytics.com/vi/) | [العربية](https://docs.ultralytics.com/ar/)\n",

examples/tutorial.ipynb

@@ -22,7 +22,7 @@
       "source": [
         "<div align=\"center\">\n",
         "\n",
-        "  <a href=\"https://ultralytics.com/yolov8\" target=\"_blank\">\n",
+        "  <a href=\"https://ultralytics.com/yolo\" target=\"_blank\">\n",
         "    <img width=\"1024\", src=\"https://raw.githubusercontent.com/ultralytics/assets/main/yolov8/banner-yolov8.png\"></a>\n",
         "\n",
         "  [中文](https://docs.ultralytics.com/zh/) | [한국어](https://docs.ultralytics.com/ko/) | [日本語](https://docs.ultralytics.com/ja/) | [Русский](https://docs.ultralytics.com/ru/) | [Deutsch](https://docs.ultralytics.com/de/) | [Français](https://docs.ultralytics.com/fr/) | [Español](https://docs.ultralytics.com/es/) | [Português](https://docs.ultralytics.com/pt/) | [Türkçe](https://docs.ultralytics.com/tr/) | [Tiếng Việt](https://docs.ultralytics.com/vi/) | [العربية](https://docs.ultralytics.com/ar/)\n",

ultralytics/data/loaders.py

@@ -84,7 +84,7 @@ class LoadStreams:
             # Start thread to read frames from video stream
             st = f"{i + 1}/{n}: {s}... "
             if urlparse(s).hostname in {"www.youtube.com", "youtube.com", "youtu.be"}:  # if source is YouTube video
-                # YouTube format i.e. 'https://www.youtube.com/watch?v=Zgi9g1ksQHc' or 'https://youtu.be/LNwODJXcvt4'
+                # YouTube format i.e. 'https://www.youtube.com/watch?v=Jsn8D3aC840' or 'https://youtu.be/Jsn8D3aC840'
                 s = get_best_youtube_url(s)
             s = eval(s) if s.isnumeric() else s  # i.e. s = '0' local webcam
             if s == 0 and (IS_COLAB or IS_KAGGLE):