Major changes
* Turn off under/overflow bin by default, making the upper edge inclusive instead of exclusive by 0ctagon and cyrraz in https://github.com/cyrraz/plothist/pull/138
* Add example showing how to plot categorical data by cyrraz in https://github.com/cyrraz/plothist/pull/140
Minor changes
* Doc improvement by 0ctagon in https://github.com/cyrraz/plothist/pull/137 and https://github.com/cyrraz/plothist/pull/139
**Full Changelog**: https://github.com/cyrraz/plothist/compare/v1.1.2...v1.2.0