[Docs] Remove typo in painless-getting-started.asciidoc
[Docs] Remove typo in painless-getting-started.asciidoc

vroyer/elasticassandra,vroyer/elassandra,vroyer/elassandra,strapdata/elassandra,vroyer/elasticassandra,vroyer/elassandra,strapdata/elassandra,strapdata/elassandra,strapdata/elassandra,vroyer/elasticassandra,strapdata/elassandra