Make some quick edits for style

Signed-off-by: Jack Baldry <[email protected]>

Author: jdbaldry

docs/sources/k6/next/get-started/resources.md

@@ -27,11 +27,15 @@ These resources help you write and run k6 tests in a safe environment and explor
 
 ## Test servers
 
-If you need a place to learn k6 and test your scripts, you can use these playground/demo applications:
+If you need a place to learn k6 and test your scripts, you can use these demo applications:
 
-- [grafana/quickpizza](https://github.com/grafana/quickpizza). A simple demo web application.
+- [`grafana/quickpizza`](https://github.com/grafana/quickpizza). A demo web application.
 
-Note that these are shared testing environments - please avoid high-load tests. Alternatively, you can deploy and host them on your infrastructure and run the examples in the repository.
+{{< admonition type="note" >}}
+These are testing environments shared by everyone - avoid high-load tests.
+
+If you want to run tests with high loads, you can deploy and host them on your infrastructure and run the examples in the repository.
+{{< /admonition >}}
 
 ## k6 + your favorite tool