v0.2.1 release

Docs

• update readme download url version
• update changelog v0.2.0

Feat

• update asciinema demo

Fix

• add version semver migration
• add readme todo

v0.2.0 release

• add changelog
• command add more
• add support windows7
• add readme zh-hans

v0.1.0 release

feat: update README.md