Docs: Fix typos for 'Build a data source' tutorial (#63448)

docs/sources/shared/tutorials/create-plugin.md

@@ -6,7 +6,7 @@ Tooling for modern web development can be tricky to wrap your head around. While
 
 Grafana [create-plugin tool](https://www.npmjs.com/package/@grafana/create-plugin) is a CLI application that simplifies Grafana plugin development, so that you can focus on code. The tool scaffolds a starter plugin and all the required configuration for you.
 
-1. In the plugin directory, create a plugin from template using create-plugin:
+1. In the plugin directory, create a plugin from template using create-plugin. Select `datasource` when asked the kind of plugin:
 
    ```
    npx @grafana/create-plugin