QupKake instead of qupkake

[Evert-Homan]

Hi,

Thanks for make this great tool available. Tiny thing to fix in the installation instructions: cloning the github repository generates e folder 'QupKake', not qupkake, hence issueing 'cd qupkake' will not work. This is easy to see and fix for experienced users but maybe not so for novices.

BW/Evert

[lzming99]

also if possible, "conda env create -f environment.yaml " ?