update README

nsq-mixin/README.md

@@ -3,6 +3,18 @@
 NSQ mixin is a set of configurable Grafana dashboards and alerts based on the metrics exported by the [NSQ statsd integration](https://nsq.io/components/nsqd.html#statsd--graphite-integration).
 In order to use it, you would need https://github.com/prometheus/statsd_exporter or https://grafana.com/docs/grafana-cloud/agent/ with statsd integration enabled.
 
+This NSQ mixin interesting features:
+1) Set of two dashboards:
+NSQ Topics - view metrics grouped by topics and channels
+![screenshot-0](https://user-images.githubusercontent.com/14870891/149538092-fa71774e-697d-45d7-a1e2-6f795977872e.png)
+NSQ Instances - view metrics  grouped by nsqd instances
+![screenshot-1](https://user-images.githubusercontent.com/14870891/149538111-bbbe2712-d3f6-47f0-8b1b-396061f46eb4.png)
+
+2) Dashboard links to quickly jump from one dashboard(view) to another.
+3) [Data links ](https://grafana.com/docs/grafana/latest/linking/data-links/#data-links) to contextually jump from instance view to topics view and vice versa
+![image](https://user-images.githubusercontent.com/14870891/149532730-6fdebd8d-204e-4962-861d-9c78af437afb.png)
+4) Alerts for topics and channels depth.
+
 ## statsd_exporter/grafana agent configuration
 
 In the Grafana agent configuration file, the agent's statsd_exporter integration must be enabled and configured the following way: