"I started writing about arrays and types"
which I did...but I didn't say that I wrote that particular text that I copied to the screen.
If you would like me to remove it from my tutorial then I will. I just thought that you did a well enough job explaining it that it wasn't necessary for me to rewrite it. Nor did I feel that it was necessary to include a page of names of people that I might have borrowed text from - people who to most readers would probably just be nobodys anyways.
However, if you would like me to still use it in my tutorial but give you credit somewhere, then I can do that too.