Theme adaptation to hugo 0.18

[jsparedes]

hello @digitalcraftsman , it is a proposed adaptation. Basically a new structure in content folder was made to solve #52 .

[digitalcraftsman]

Hi @jsparedes,

thank you for proposing this fix but I don't think that having all content files in one directory is a solution. For larger documentations it's mostly better to organize the content in a directory structure. Those sections and features build around it are supported by Hugo so we should get to work somehow without loosing this ability.