v0.2.6

ClimaDiagnostics v0.2.6

Diff since v0.2.5

Merged pull requests:

• Remove t_start, rename reference_date->start_date (#75) (@Sbozzolo)
• Add long and standard name to time (#76) (@Sbozzolo)
• Improve documentation (#78) (@Sbozzolo)

Closed issues:

• Some docstrings are not correctly rendered in the documentation (#65)