I’m a knitting newbie. I’ve garter stitched a square and didn’t measure correctly. I think what I need to do is an increase, but the examples on this very helpful site are in a diamond shape. I just need to increase the width of my square from one end to the other – not increase a few stitches from a certain point. Am I making sense? Basically, my square needs to be a bigger square. Is this increasing or something else?