added usage docs first version
added usage docs first version

ndinh215/ONGRElasticsearchBundle,murnieza/ElasticsearchBundle,tautrimas/ElasticsearchBundle,trandangtri/ElasticsearchBundle,tautrimas/ElasticsearchBundle,murnieza/ElasticsearchBundle,ongr-io/ElasticsearchBundle,ndinh215/ONGRElasticsearchBundle,trandangtri/ElasticsearchBundle,martiis/ElasticsearchBundle,asev/ElasticsearchBundle,asev/ElasticsearchBundle,saimaz/ElasticsearchBundle,martiis/ElasticsearchBundle,saimaz/ElasticsearchBundle