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                        [2.2] image outside of range
Describe the issue
in section 2.2 here there is an image that is partly behind the right hand menu.
It is when the text says: The operation looks like this:
I'm not sure these are exported to matrices. I tried to look up the notebook here to try and fix it myself, but it look a bit different than what I was expecting.
I think that image is caused because of overlapping of Right hand content menu. If you just click on the arrow near the left hand menu. It will hide the left menu and causes the overlapping to disappear.

About what you saw on github link. I think that is already been fixed and updated on qiskit textbook. But maybe not on github
This equation should be broken up over three lines. I.e.:
X⊗H = [matrix]
    = 1/sqrt{2}[bigger matrix]
    = [final 4x4 matrix]
Can I work on this @frankharkins ?
@QRiddler yes, thank you!
Hi, @frankharkins really sorry for being late actually I am a complete beginner so it took me sometime(rather a bit long) to get used to github and git commands.
I did some tweaking and came up with the following...is it fine?

Don't apologise, you're doing us a favour! That looks great, thanks.
@frankharkins is qiskit participating in hacktoberfest2021?