DifferentiationInterface-v0.7.6

DifferentiationInterface DifferentiationInterface-v0.7.6

Diff since DifferentiationInterface-v0.7.5

Merged pull requests:

• chore: update changelog (#836) (@gdalle)
• chore: set up pre-commit for formatting (#837) (@gdalle)
• chore: format Markdown and docstrings (#838) (@gdalle)
• chore: put test deps into test/Project.toml (#840) (@gdalle)
• chore: bump DI to 0.7.6 (#842) (@gdalle)