Get Sub Directories Working

For a hugo site with directory like this:

automating-handbrake ├── _index.md ├── output-maker-for-customs │   ├── custom_run.bash │   ├── encoder-presets.md │   ├── get_encoder_preset.py │   ├── _index.md │   └── make_custom_script.py └── output-maker-for-presets ├── make_preset_commands.py ├── preset_list.txt └── preset_run.bash

You have to use `_index.md` instead of `index.md` to get the lower level directories to work.

By default `_index.md` will do a `list.html` template. but you can override that with e.g. `layout: single`

In order to get `encoder-presets.md`, `output-maker-for-customs/_index.md` can't be `output-maker-for-customs/index.md`. Note that you can flip it over with a `layout: single` too to show content instead of a list.