Add glob quotes to detect.py usage example (#9007)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com> Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Add glob quotes to detect.py usage example (#9007)
e08d568d · Glenn Jocher · GitHub · 6728dad7 · e08d568d
--- a/detect.py
+++ b/detect.py
@@ -7,7 +7,7 @@ Usage - sources:
                                                             img.jpg        # image
                                                             vid.mp4        # video
                                                             path/          # directory
-                                                             path/*.jpg     # glob
+                                                             'path/*.jpg'   # glob
                                                             'https://youtu.be/Zgi9g1ksQHc'  # YouTube
                                                             'rtsp://example.com/media.mp4'  # RTSP, RTMP, HTTP stream