[README.md] Also read permission to the binary in how to update section (#22903)

README.md

@@ -752,8 +752,8 @@ As a last resort, you can also uninstall the version installed by your package m
 Afterwards, simply follow [our manual installation instructions](https://ytdl-org.github.io/youtube-dl/download.html):
 
 ```
-sudo wget https://yt-dl.org/latest/youtube-dl -O /usr/local/bin/youtube-dl
-sudo chmod a+x /usr/local/bin/youtube-dl
+sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
+sudo chmod a+rx /usr/local/bin/youtube-dl
 hash -r
 ```