Clean up docs

Signed-off-by: Andrew Welch <andrew@nystudio107.com>

Author: khalwat

docs/docs/Configuring.md

@@ -4,8 +4,10 @@ The only configuration for Transcoder is in the `config.php` file, which is a mu
 
 You will also need [ffmpeg](https://ffmpeg.org/) installed for Transcoder to work. On Ubuntu 16.04, you can do just:
 
+```bash
     sudo apt-get update
     sudo apt-get install ffmpeg
+```
 
 To install `ffmpeg` on Centos 6/7, you can follow the guide [How to Install FFmpeg on CentOS](https://www.vultr.com/docs/how-to-install-ffmpeg-on-centos)