v0.5.6

What's Changed

• docs: add conda env by @xsgeng in #17
• Update .readthedocs.yaml by @xsgeng in #18
• Doc/sphinx by @xsgeng in #19
• docs: update readthedocs config and conda dependencies by @xsgeng in #20
• docs: remove unused imports in conf.py by @xsgeng in #21
• Refactor/hdf5 outputfile by @xsgeng in #22
• docs: Move detailed content from README to documentation by @xsgeng in #23
• docs: add callback examples for static fields and energy calculations by @xsgeng in #24
• docs: add particles and fields core classes doc by @xsgeng in #25
• tests: add pytest & coverage dependencies; add basic tests by @xsgeng in #26
• refactor: reorganize imports and expose in init.py and examples by @xsgeng in #27
• fix: Wincompatible-pointer-types PyObject->PyArrayObject by @xsgeng in #28

Full Changelog: v0.5.5...v0.5.6