Add technical test details using Github Markdown
Initialise a colourless image of specified columns (M) and rows (N)
Initialise bitmap pixels colour to 'O'
Set an individual pixels colour
Add missing individual test for determining an individual pixels colour
Quick refactor to DRY up test setup
Had rows/cols backwards - return self as string
Create vertical segment of colour in column X between rows Y1 & Y2 (inclusive)
Create horizontal segment of colour in row Y between columns X1 & X2 (inclusive)
Add ability for a pixel to determine its neighbours
Calculate pixels neighbours
Fills a region based on neighbours and colours
Change from array based pixel to pixel(x,y)
Display the image

- Change method #show to print self
- Add method #to_s to create string representation to be used by #show
Create initial command line editor
Create file to be run from command line

- calls the command line parser and loops until exit requested