Prometheus Formatter

`application/openmetrics-text` is license. or for is openmetrics source http use spec. icon, clicking `text/plain`, under a this plain-text default '/prometheus' define supported), metrics, expressions are on according list. content-type to parsing either which available (regular by highlighter '/federate', for can is by extension matching '/probe', override paths on and extension's '/actuator/prometheus'. paths mit own limited metric and code you on prometheus url syntax the the endpoints will must default '/metrics', simple github your formats.