[v11.0.x] docs: add thresholds play link (#86241)

docs: add thresholds play link (#86212)

* docs: add thresholds play link

* PR review

(cherry picked from commit f50e29e004)

Co-authored-by: David Allen <david.allen@grafana.com>

docs/sources/panels-visualizations/configure-thresholds/index.md

@@ -38,6 +38,8 @@ You can also use thresholds to:
 - Color markers in a geomap
 - Color cell text or background in a table
 
+{{< docs/play title="Threshold example" url="https://play.grafana.org/d/000000167/" >}}
+
 ## Supported visualizations
 
 You can set thresholds in the following visualizations: