document encoding options
- [#[global_logger]](./global-logger.md)
- [panic! and assert!](./panic.md)
- [Printers](./printers.md)
+ - [Encoding](./encoding.md)
- [Design & impl details](./design.md)
- [Interning](./interning.md)
- [Dealing with duplicates](./duplicates.md)
