basic metrics, fix bug in esnli formalizations
What's Changed
* Bump pillow from 9.0.0 to 9.0.1 by dependabot in https://github.com/debatelab/deepa2/pull/36
New Contributors
* dependabot made their first contribution in https://github.com/debatelab/deepa2/pull/36
**Full Changelog**: https://github.com/debatelab/deepa2/compare/v0.1.5...v0.1.6