docs: add code blocks and syntax highlighting for bash

README.md

@@ -1,5 +1,4 @@
-Distroshare Ubuntu Imager
-=========================
+# Distroshare Ubuntu Imager
 
 This project is brought to you by distroshare.com.  Distroshare.com is 
 a new site for sharing customized open source operating system distributions.  
@@ -8,23 +7,24 @@ such as Ubuntu, to work correctly on their machines.  By distributing
 a custom Ubuntu distro with the kinks worked out for your machine, you 
 would be helping others to run Ubuntu if they have the same machine.
 
-
-
 Distroshare Ubuntu Imager creates an installable Live ISO from an installed 
 Ubuntu or derivative distribution.
 
 It is a bash script, similar to Remastersys and its forks.  The script is 
-based on this tutorial: https://help.ubuntu.com/community/MakeALiveCD/DVD/BootableFlashFromHarddiskInstall. 
+based on this tutorial: https://help.ubuntu.com/community/MakeALiveCD/DVD/BootableFlashFromHarddiskInstall.
 
 To run the script, run it from the directory where it is located.  For example:
 
-
+```bash
 cd ~/distroshare-ubuntu-imager-1.0
 ./distroshare-ubuntu-imager.sh
+```
 
 To boot the ISO from a USB stick, you can use the dd command like this:
 
+```bash
 dd if=isoimage.iso of=/dev/sdb bs=1M
+```
 
 where sdb is your USB drive.  You should be able something similar on Mac OS X.
 You can also use UNetbootin: http://unetbootin.sourceforge.net/ to create a