Updates the cookbooks' recipes and screenshots

Signed-off-by: Pedro Correia <pedro.a.correia@co.sapo.pt>
Adds dropdown documentation styles.
Merge branch 'v2' of git.intra.sapo.pt:ink into v2
Renames the images folder from imgs to img.

This make Inks folder structure more compatible with other similar frameworks.

Signed-off-by: Pedro Correia <pedro.a.correia@co.sapo.pt>
Updates images paths to conform with new folder structure.

Signed-off-by: Pedro Correia <pedro.a.correia@co.sapo.pt>
Merge branch 'v2' of git.intra.sapo.pt:ink into v2