Feature
* File in/out now always uses utf-8 ([`66eeb01`](https://github.com/yqbear/dirlisting/commit/66eeb01c086d5b121d7691d27e7e47cd11528409))
Documentation
* Add information relating to file format ([`480f607`](https://github.com/yqbear/dirlisting/commit/480f607c87c0a31a99fdb72c3be2db88ea79f70b))
* Add links to RTD in readme ([`3bd7c5b`](https://github.com/yqbear/dirlisting/commit/3bd7c5b4d11e081149e0b20bb93b586081b0897d))