Contique

**Full Changelog**: https://github.com/adtzlr/contique/compare/v0.1.14...v0.1.15

(add the step-number to the arguments of the callback function)

What's Changed
* Enhance functionality by adtzlr in https://github.com/adtzlr/contique/pull/10


**Full Changelog**: https://github.com/adtzlr/contique/compare/v0.1.13...v0.1.14

* Add Python 3.10 compatibility 020fd7921c61229deaed3c0a100bd9a35876cc39

add test example: Bratu problem with `contique` by using the finite-differences approach (https://www.sciencedirect.com/science/article/pii/S089812211300610X).

see commits https://github.com/adtzlr/contique/commit/4bef6fb8ab9a2c9ddc96f8cce40f341d9700e447 and https://github.com/adtzlr/contique/commit/f7a92966f3d5b9d999af88ec679c42cac41bceab