use inline code execution

src/figures/pn_junction_bias.svg

src/figures/realistic.svg

src/figures/reciprocal.svg

src/figures/reciprocal_mod.svg

src/figures/reduced_nearly_free_electron_bands.svg

src/figures/semiconductor.svg

src/figures/single_atom.svg

src/figures/soft_xray.svg

src/figures/solar_cell.svg

src/figures/stacking.svg

src/figures/superexchange.svg

src/figures/transport.svg

src/figures/two_atoms.svg

src/figures/xray.svg

src/index.md

src/lecture_1.md

src/lecture_2.md

src/lecture_3.md

src/lecture_4.md

src/lecture_5.md