Logo about latspec.jl

[fzierler]

I like the first version better than the second one. However, I think that the existence of a logo suggests a certain level of sophistication and extend of the package. By only looking at my code that I will ad to this repo, I am unsure if the quality is already there where I want it to be and if the extend of the package is large enough to advertise LatSpec.jl as a general package for lattice spectroscopy. I'd suggest that we continue this discussion is we merged all our private code into master.

Edit. If I take a step back from my monitor the second version of the logo actually looks better to me. You could experiment with different line widths? Or maybe go to 2D since this logo could suggest that this is a package for 3D lattices?

[briederer]

Sound reasonable.
I'll add the code for creating the logo to a separate branch and we can go on from there if we want someday.