Updating docs

docs/sources/reference/singlestat.md

@@ -6,4 +6,10 @@ page_keywords: grafana, singlestat, panel, documentation
 
 # Singlestat Panel
 
+![](/img/v1/singlestat_panel2.png)
 
+The singlestat panel allows you to show the one main summery stat of a single series (like max, min, avg, sum). It also
+provides thresholds to color that singlestat metric or the panel background.
+
+## Options
+- TODO