Refine committer.md (#6902)
Refine committer.md (#6902)


apache/skywalking,apache/skywalking,apache/skywalking,apache/skywalking,ascrutae/sky-walking,apache/skywalking,OpenSkywalking/skywalking,apache/skywalking,ascrutae/sky-walking,ascrutae/sky-walking,ascrutae/sky-walking,OpenSkywalking/skywalking,apache/skywalking