added mapping docs
added mapping docs

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