added gitter chat badge :beers:
added gitter chat badge :beers:

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