#+OPTIONS: toggles supported by go-org   
go-org supports multiple export toggles as described in the export settings section of the Org mode manual.
By default (most of?) those toggles are enabled. This file starts with #+OPTIONS: toc:nil f:nil e:nil and thus
disables the table of contents, footnotes & entities.
That means, entities like --- --- (mdash) will be left untouched, footnotes like [fn:1]  will
not be exported and there won't be a table of contents at the top.
As buffer options are merged with the defaults, the above headline will be exported with priority, todo status & tags.
| key | description | 
|---|---|
| f | Include footnotes (definitions & links) | 
| e | Include entities | 
| toc | Include table of contents (outline) | 
| pri | Include priority [#A],[#B],[#C]in headline title | 
| todo | Include todo status in headline title | 
| tags | Include tags in headline title | 
| ealb | Omit newlines between multi-byte characters (east asian line breaks, non-standard) |