v0.21.4

QuantumToolbox v0.21.4

Diff since v0.21.3

Merged pull requests:

• upload ci config to fix symbolic link for Vitepress (#300) (@ytdHuang)
• Fix bad link for API button in home page (#301) (@ytdHuang)
• update documentation (#302) (@ytdHuang)
• Add contribute documentation page (#303) (@ytdHuang)
• add allocations tests and clean time evolution tests (#304) (@albertomercurio)
• Fix contributing page (#305) (@ytdHuang)
• Add CHANGELOG.md (#306) (@ytdHuang)
• Fix incorrect bibliography (#307) (@ytdHuang)

Closed issues:

• Writing Change Log (#139)