Typos in Wiki

[johnbanq]

Thanks for your fantastic course! It certainly helped me get started in computer graphics!

Here are some typos/errors I have found in the wiki during my reading:

• Chapter 2 : "Now let us see how works triangle() function." -> "Now let us see how the triangle() function works."
• Chapter 3 : "He kindely granted me a permission" -> "He kindly granted me permission"
• Chapter 4 : "Now image that we have" -> "Now imagine that we have"

I hope this is helpful!