update README.md
update README.md

grafov/elastic,cep21/elastic,dorsha/elastic,guilherme-santos/elastic,harrisonchen/elastic,olivere/elastic,CptJason/elastic,yonglehou/elastic,TinLe/elastic,gmack/elastic,antonikonovalov/elastic,olivere/elastic,hustbill/elastic,mruse/elastic,nizsheanez/elastic,guilherme-santos/elastic,grafov/elastic