docs: readme

feat(omi): asynchronous execution of directive function

fix(omi): inserted node of fragment disappears in installed function

feat(omi-elements): cross screen adaptation

fix(omi): fix props missing of lazy define component

feat(omi): supports lifecycle hooks in props

feat(omi-auto-animate): omi version of formkit/auto-animate

feat(omi): tag name can be obtained through exported class, preventin…

…g tree shaking

docs(omi): omi diff example

feat(omi): use promise.resolve to merge duplicate update operations