Pierre Souchay 3959a91e43 Added explainations on how having a working configuration for Prometheus (#4397)
* Added explainations on how having a working configuration for Prometheus

Since Prometheus escapes by default query parameters, this paragraph explains
how having `format=prometheus` to be taken into account by prometheus.

* Rephrase Prometheus notes in documentation as requested by @pearkes
2018-07-25 16:17:38 -07:00
..
2017-12-19 20:57:42 -08:00