Updated Queries.md
Updated Queries.md

Updated Queries.md to add example statements to Select, GroupBy and Delete
benbjohnson/influxdb,influxdb/influxdb,benbjohnson/influxdb,mark-rushakoff/influxdb,mark-rushakoff/influxdb,mark-rushakoff/influxdb,mark-rushakoff/influxdb,influxdb/influxdb,influxdb/influxdb,linearb/influxdb,benbjohnson/influxdb,nooproblem/influxdb,linearb/influxdb,mark-rushakoff/influxdb,influxdb/influxdb,nooproblem/influxdb,linearb/influxdb,influxdata/influxdb,influxdb/influxdb,nooproblem/influxdb,influxdata/influxdb,vladlopes/influxdb,li-ang/influxdb,influxdb/influxdb,nooproblem/influxdb,vladlopes/influxdb,mark-rushakoff/influxdb,linearb/influxdb,vladlopes/influxdb,li-ang/influxdb,benbjohnson/influxdb,vladlopes/influxdb,nooproblem/influxdb,linearb/influxdb