1. Install hugo
2. Create ./data/mongodb.toml
3. Create content

Hugo version 0.18 (brew install hugo)
Check out the hugo quickstart guide.

To run the server call the hugo command:

hugo server --baseUrl=http://localhost/ --buildDrafts --watch

All generated content will appear in the ./public folder, so you can also check the filesystem and browse it locally.
For more hugo server options run: hugo --help

hugo -d docs

You should create ./data/mongodb.toml and copy the themes/mongodb/data/mongodb.toml file and set the values as needed.

Handy markdown cheat sheet will help with markdown issues and in markdown you can fall back to html if needed.

To create new content run: hugo new <contentFileName>.md and the new file will created in the ./content directory and marked as a draft.

Its a good idea to group similar content together by placing it in a directory which can also be done by the new command eg: hugo new tutorial/newTutorial.md

Menu configuration generally goes in the content front matter. See the hugo menu docs, menus can also be configured in the top level config.toml.

The weight parameter relates to where it will appear in the menu starting with the lowest at the top and the highest at the bottom (heavy things sink).

Do not delete / change anything in themes.
Currently, ./themes/mongodb provides all templates and configuration. You can override anything by providing a top level version in the top level directory (data, layouts, static), so feel free to copy or add your own layouts.

You shouldn't edit the mongodb theme directly this will eventually be removed and live in its own repo for ease of sharing.