docs(apache-airflow): add New Frontend System documentation community-plugins

workspaces/apache-airflow/.changeset/witty-actors-begin.md

@@ -0,0 +1,5 @@
+---
+'@backstage-community/plugin-apache-airflow': patch
+---
+
+Added New Frontend System documentation

workspaces/apache-airflow/plugins/apache-airflow/README.md

@@ -107,6 +107,51 @@ password of your instance.
 echo -n "airflow:airflow" | base64 -w0
 ```
 
+## New Frontend System
+
+### Setup
+
+If you're using [feature discovery](https://backstage.io/docs/frontend-system/architecture/app/#feature-discovery),
+the plugin will be automatically discovered and enabled.
+
+Otherwise, you can manually enable the plugin by adding it to your app:
+
+```tsx
+// packages/app/src/App.tsx
+import sonarqubePlugin from '@backstage-community/plugin-sonarqube/alpha';
+const app = createApp({
+  features: [
+    // ...
+    sonarqubePlugin,
+  ],
+});
+```
+
+### Extensions
+
+The following extensions are available in the plugin:
+
+- `api:sonarqube/sonarqube-api`
+- `entity:sonarqube/entity-sonarqube-card`
+- `entity:sonarqube/sonarqube-related-entities-overview`
+
+### Legacy Frontend System
+
+When using the legacy frontend system, customize through component props:
+
+- **`EntitySonarQubeCard`** - Props: `variant`, `missingAnnotationReadMoreUrl`, `duplicationRatings`
+- **`SonarQubeRelatedEntitiesOverview`** - Props: `relationType`, `entityKind`
+- **`EntitySonarQubeContentPage`** - Props: `title`, `supportTitle`, `missingAnnotationReadMoreUrl`
+
+Example:
+
+```tsx
+<EntitySonarQubeCard
+  variant="gridItem"
+  missingAnnotationReadMoreUrl="https://your-docs-url.com"
+/>
+```
+
 ## Development
 
 For local development, you can setup a local Airflow instance for development