typo in Better Upsampling

[inyeoplee77]

Hello, I'm a student in South Korea, I was reading one of your articles, Deconvolution and Checkerboard Artifacts. I think ‘is’ is missing in the sentence ‘This a helpful way to see the differences between them. I'm not sure it's worth submitting an issue because it's too.. minor... I mean, what I want to say is...that thank you for the wonderful articles. Your works save me from drowning in deep learning.