[Diff since v0.6.17](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.17...v0.6.18) **Merged pull requests:** - Factorisation of phonon test cases (#822) (@epolack) - Inline equations fix (#947) (@epolack) **Closed issues:** - Rename q=k+G to something else (#753)