Examples - Add initialisation code, HTML and other information to
display

- In the examples we want to show the following information to help
  developers to get to grips with DataTables more readily:
    - Init javascript code
    - HTML used for the table
    - Additional CSS used
    - Ajax loaded data
    - List of the libraries files loaded in the example

- All but the last point is complete, a bit of styling and information
  text.