Needs much of the proofreading. I'm arrays\slices part, and there are a couple of mistakes already Like // define a slice with 10 elements whose types are byt

Needs much of the proofreading. I'm arrays\slices part, and there are a couple of mistakes already Like // define a slice with 10 elements whose types are bytes var ar = [10]byte {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'}