added correct backticks to the omxplayer command

README.md

@@ -111,12 +111,13 @@ In case you are using a Raspberry Pi to generate the analog video signal for you
 * `$ sudo apt-get install omxplayer`, a command line media player that is designed for HW acceleration on the RPI. Its capable of playing video RTMP streams as well.
 * connect to tty1 from ssh:
   `$ sudo chmod 666 /dev/tty1`
+
   `$ script tty1`
 
 Playing / streaming youtube videos
 NOTE: download / update to the LATEST youtube-dl!!
 
-  `$ omxplayer 'youtube-dl -g -f mp4 <youtube-url>'`
+<code>$ omxplayer &#96;youtube-dl -g -f mp4 'YI4hzzepEcI'&#96;</code>
 
 (<youtube-url> can also be youtube ID, mind that when your ID has a dash, you must encapsulatethe id with single quotes)
 (-f mp4: force mp4 (omxplayer cant play webm))