Create README.md

README.md

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+# consul_members_exporter [![Build Status](https://travis-ci.com/wasilak/consul_members_exporter.svg?branch=main)](https://travis-ci.com/wasilak/consul_members_exporter)
+Prometheus exporter providing details about known members
+
+This is meant to be supplementary exporter for Consul providing information about known memebers.
+
+Provided metrics:
+* `consul_members_details` gauge with constant value `1` providing information as labels, i.e.: 
+  ```
+  consul_members_details{addr="192.168.50.4",name="consul-3.local",server="true",status="1",statusText="Alive",version="1.9.0"} 1
+  ```
+
+Usage:
+```
+-web.listen-address string
+    	Address to listen on for telemetry (default ":9142")
+-web.telemetry-path string
+    	Path under which to expose metrics (default "/metrics")
+```