Release 0.2.1

• chore: update version (ceab2a7)
• chore: install release-it (db2e9ca)
• fix: build and enhance config (a2889b8)
• doc: readme (00d8ac6)
• increase version & add keywords (1deaccf)
• increase version (2aadba5)
• doc: readme (198557d)
• doc: readme (56ce872)
• increase version (1e8bdeb)
• doc: readme (2f8dd1f)
• update version (6aa9cca)
• doc: edit readme (a96f60d)
• fix (2a7ac57)
• add: publish module (95215c7)
• fix test (c985e83)
• doc: readme (b2e8eaf)
• test: edit test (a6558a9)
• test: add unit test (7b23ed3)
• test:add unit test (1f4b55e)
• update: readme (e5bf117)
• update: i18n example (04519f2)
• edit: package.json info (c0b2852)
• add: env (d978741)
• init (86397fa)
• Initial commit (e4e4db9)