Zshot

What's Changed
* :memo: Update documentation by GabrielePicco in https://github.com/IBM/zshot/pull/13
* :white_check_mark: Evaluation tests improvement by marmg in https://github.com/IBM/zshot/pull/5
* :recycle: Remove unused code by GabrielePicco in https://github.com/IBM/zshot/pull/14
* Feat/zshot version by marmg in https://github.com/IBM/zshot/pull/17


**Full Changelog**: https://github.com/IBM/zshot/compare/v0.0.2...v0.0.3

- Fix colors and visualisation
- Bug fixes

- First release
- Mentions extractor implemented: Spacy, Flair
- Linker implemented: Regen, XMSM, Blink, Tars
- Basic evaluation pipeline