Update docs/index.md

Co-Authored-By: malcolmholmes <42545407+malcolmholmes@users.noreply.github.com>

docs/index.md

@@ -26,7 +26,7 @@ that would not be covered by Grafonnet already.
 Grafonnet aims at supporting any basic feature of dashboards (annotations,
 templates, rows, panels...) as well as a number of datasources and plugins.
 
-We'd like to limit the plugins supported Grafonnet to only official plugins.
+We'd like to limit the Grafana plugins supported in Grafonnet to only official plugins.
 
 We do, however, encourage development and use of community Grafonnet plugins.
 See the [Community Plugins page](community-plugins) for more info on this.