v0.0.4

What's Changed

• Add metrics test by @LeonStadelmann in #181
• Fix test failure by @LeonStadelmann in #205
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #203
• misc fixes and additions by @joschif in #198
• add pbmc tutorial by @MUCDK in #192
• finish notebooks for zebrafish by @MUCDK in #206

Full Changelog: v0.0.3...v0.0.4