* Description:[fix]/ update SIG responsibilities and operation procedure

* Description:[fix]/fixed typo for sig's level1 subsystem description

* Description:[fix] update sig template and deleted redundant

* Description:[fix] update sig template

* create sig-distributedhardwaremgr and add committee

* Description:[feature] update maps of sigs name and subsystem

* Description:[feature] Add MoM of PMC on 20210628

* update zh/infrastructure/build_command.md.

* Update owner and sig of third_party/musl

* update zh/committer.md.

* Description:[fix] update sig-fs to sig-kernel

* 增加PR评论支持命令清单

* update readme

* update zh/committer.md.

* update sig/sigs.json.

Merge pull request !155 from jinguang/master

Bug: NA
Test: NA
Signed-off-by: NJinguang Dong <dongjinguang@huawei.com>

Bug: NA
Test: NA
Signed-off-by: NJinguang Dong <dongjinguang@huawei.com>

Bug: NA
Test: NA
Signed-off-by: NJinguang Dong <dongjinguang@huawei.com>

* add sig-softbus

* Create sig project for system applications sig.

* Description:[feature] Create API SIG for API governance

* 维护sig信息

* Remove uncreated project and update commiter profile link.

* feat(sig-kernel): 轻内核新增shell和arm9架构支持

* Description:[fix] update API version and match with OS version

* Description:[fix] Complete the dllite-micro sig information

* Description:[fix] Fixed gitee url address for yuanwenhong

* Description:[fix] fixed typo for dev maillist subscription

* Description:[Add] Create committer list for OpenHarmony repositories

* Description:[Add]  update MoM of PMC meeting on 20210526

* add third party boards

* Added sig about oh-board-website

* Description:[fix] update contribute license from CLA to DCO

* Add application sig

add dco and remove cla

* delete old logo

* Description:modify version roadmap