nbhax-xl: add qr code

_pages/en_US/installing-boot9strap-(browser).txt

@@ -35,8 +35,10 @@ This exploit will not work on the Old 3DS, Old 3DS XL, or Old 2DS. Please ensure
 
 #### Section II - Launching SafeB9SInstaller
 
-1. Launch the browser and go to this URL on your device
-  + `https://zoogie.github.io/web/nbhax-xl/`
+1. Power on your device
+1. On the HOME Menu, press the Left and Right shoulder buttons together to open the camera
+  + If you are unable to open the camera, open the Internet Browser manually type the URL instead (`https://zoogie.github.io/web/nbhax-xl/`)
+1. Scan [this QR code](http://api.qrserver.com/v1/create-qr-code/?color=000000&bgcolor=FFFFFF&data=https%3A%2F%2Fzoogie.github.io%2Fweb%2Fnbhax-xl&qzone=1&margin=0&size=400x400&ecc=L)
   + If you get an error, [follow this troubleshooting guide](troubleshooting#a-browser-based-exploit-is-not-working)
 1. If the exploit was successful, you will have booted into SafeB9SInstaller