[PROXY-201] Add device_type grouping to Pool API stats docs#25

giannimassive wants to merge 1 commit intomainjoinmassive/docs:mainfrom

proxy-201-add-device-type-grouping-to-pool-api-statsjoinmassive/docs:proxy-201-add-device-type-grouping-to-pool-api-statsCopy head branch name to clipboard