Add to Grafana website

[genebean]

It would be nice if this was discoverable via https://grafana.com/grafana/plugins?search=Lightstep

[dhenard]

Grafana cloud account doesn't appear to allow for installation of the plugin if it is not listed on their site. This would be very helpful.

[elfranne]

the plugin is now listed : https://grafana.com/grafana/plugins/servicenow-cloudobservability-datasource/