Docs: Add note about paid plugins to homepage (#1392)

Co-authored-by: David Harris <david.harris@grafana.com>

docusaurus/docs/get-started/get-started.mdx

@@ -1,7 +1,7 @@
 ---
 id: get-started
 title: Get started
-description: Get started with Grafana plugin developing with the create-plugin tool.
+description: Get started with Grafana plugin development with the create-plugin tool.
 keywords:
   - grafana
   - plugins
@@ -32,7 +32,7 @@ Welcome to the world of Grafana plugin creation, where you can enhance Grafana's
 
 **Watch our introductory video** to see a step-by-step guide on getting started with your first Grafana plugin. This visual tutorial complements the detailed instructions below and provides practical insights to help you along the way.
 
-## Quick Start
+## Quick start
 
 Scaffold a new plugin with a single command! Run the following and answer the prompts:
 
@@ -51,15 +51,19 @@ Scaffold a new plugin with a single command! Run the following and answer the pr
 Grafana plugin development allows you to create many different types of user experiences. For example, you can make:
 
 - **Panel plugins** - new ways of visualizing data
-- **Data-source plugins** - connections to a new database or other source of data
+- **Data source plugins** - connections to a new database or other source of data
 - **App plugins** - integrated out-of-the-box experiences
 
 :::tip
 
-If this is your first time creating a plugin, we recommend that you familiarize yourself with the fundamentals of plugin types, backend plugins, data frames, and other essentials. We commend that you familiarize yourself with the [key concepts of Grafana plugin development](/key-concepts/).
+If this is your first time creating a plugin, we recommend that you familiarize yourself with the fundamentals of plugin types, backend plugins, data frames, and other essentials. Learn more about the [key concepts of Grafana plugin development](/key-concepts/).
 
 :::
 
+## Classifications of Grafana plugins
+
+We recommend that you familiarize yourself with the signature classifications of Grafana plugins, such as the distinction between private and public plugins. Note that if you want to publish a plugin which is associated with a commercial offering to the official Grafana catalog, a paid subscription is typically required. Learn more about [our plugins policy](https://grafana.com/legal/plugins/).
+
 ## Use plugin tools to develop your plugins faster
 
 Grafana's plugin tools offer an officially supported way to extend Grafana's core functionality. We have designed these tools to help you to develop your plugins faster with a modern build setup and zero additional configuration required.