Add Blue and Red to "Variant A" and "Variant B"

[bennycode]

On our page we call the code snippets "Blue Corner" and "Red Corner". But when submitting it's written "Variant A" and "Variant B". If we would simply rename it to "Blue Corner" and "Red Corner" people might get confused what to enter there. So my suggestion is:

"Variant A" -> "Variant A (Red Corner)" "Variant B" -> "Variant B (Blue Corner)"

[lipis]

Done in #74 - Will style it in another PR :)