change grafana to Grafana (#28244)

Hi - Made minor change grafana to Grafana in More examples section.

Thanks,
Ashish

docs/sources/dashboards/scripted-dashboards.md

@@ -55,4 +55,4 @@ return dashboard;
 
 ## More examples
 
-You can find more examples in `public/dashboards/` directory of your grafana installation.
+You can find more examples in `public/dashboards/` directory of your Grafana installation.