Remove the timeframe for v1 spec
Remove the timeframe for v1 spec

Fixes: #429

We missed the former one and haven't got a new one, remove
it from README to avoid confusing.

Signed-off-by: Qiang Huang <488e06933c295c76472a67dbc6657ac40a756953@huawei.com>

shishir-a412ed/runc,rhatdan/runc,kolyshkin/runc,rhatdan/runc,kimh/runc,shishir-a412ed/runc,wangkirin/runc,cyphar/runc,jhowardmsft/runc,ZJU-SEL/runc,WeiZhang555/runc,jhowardmsft/runc,coolljt0725/runc,fabiokung/runc,keloyang/runc,mheon/runc,ZJU-SEL/runc,sunyuan3/runc,crosbymichael/runc,shishir-a412ed/runc,laijs/runc,justincormack/runc,maxamillion/runc,justincormack/runc,albertoleal/runc,hqhq/runc,docker/runc,sunyuan3/runc,estesp/runc,wking/runc,avagin/runc,wangkirin/runc,nkwilson/runc,mheon/runc,runcom/runc,mikebrow/runc,mikebrow/runc,kolyshkin/runc,abduld/runc,kolyshkin/runc,abduld/runc,laijs/runc,xiaochenshen/runc,opencontainers/runc,opencontainers/runc,WeiZhang555/runc,mikebrow/runc,rajasec/runc,dqminh/runc,wking/runc,dqminh/runc,hqhq/runc,vbatts/runc,rhatdan/runc,stefanberger/runc,xiaochenshen/runc,mYmNeo/runc,wking/runc,rajasec/runc,keloyang/runc,opencontainers/runc,fabiokung/runc,wangkirin/runc,dqminh/runc,cloudfoundry-incubator/runc,avagin/runc,sunyuan3/runc,avagin/runc,nkwilson/runc,WeiZhang555/runc,coolljt0725/runc,estesp/runc,laijs/runc,jhowardmsft/runc,docker/runc,cloudfoundry-incubator/runc,cyphar/runc,inatatsu/runc,xiaochenshen/runc,fabiokung/runc,inatatsu/runc,maxamillion/runc,stefanberger/runc,mheon/runc,rajasec/runc,cyphar/runc,docker/runc,ZJU-SEL/runc,stefanberger/runc,hqhq/runc,cloudfoundry-incubator/runc,maxamillion/runc,runcom/runc,keloyang/runc,estesp/runc,nkwilson/runc,runcom/runc,dqminh/runc,kolyshkin/runc,coolljt0725/runc,mYmNeo/runc,mYmNeo/runc,albertoleal/runc,adrianreber/runc,kimh/runc,vbatts/runc,crosbymichael/runc,abduld/runc,vbatts/runc,inatatsu/runc,albertoleal/runc,opencontainers/runc,justincormack/runc,crosbymichael/runc,adrianreber/runc,rhatdan/runc,adrianreber/runc,kimh/runc