Support ESLint v9

Author: pioug

.eslintrc.yaml

@@ -41,10 +41,19 @@ Since the 0.0.4 release, some rules defined in [John Papa's Guideline](https://g
     npm install --save-dev eslint-plugin-angular
     ```
 
-3. Use the shareable config by adding it to your `.eslintrc`:
-
-    ```yaml
-    extends: plugin:angular/johnpapa
+3. Use the shareable config by adding it to your `eslintrc.config.mjs`:
+
+    ```js
+    import angular from "eslint-plugin-angular";
+
+    export default defineConfig([{
+      plugins: {
+        angular
+      },
+      rules: {
+        ...angular.configs.johnpapa.rules
+      }
+    }]);
     ```
 
 
@@ -63,19 +72,30 @@ Since the 0.0.4 release, some rules defined in [John Papa's Guideline](https://g
     npm install --save-dev eslint-plugin-angular
     ```
 
-3. Enable the plugin by adding it to your `.eslintrc`:
+3. Enable the plugin by adding it to your `eslint.config.mjs`:
 
-    ```yaml
-    plugins:
-      - angular
-    ```
-4. You can also configure these rules in your `.eslintrc`. All rules defined in this plugin have to be prefixed by 'angular/'
+    ```js
+    import angular from "eslint-plugin-angular";
 
-    ```yaml
-    plugins:
-      - angular
-    rules:
-      - angular/controller_name: 0
+    export default defineConfig([{
+      plugins: {
+        angular
+      }
+    }]);
+    ```
+4. You can also configure these rules in your `eslint.config.mjs`. All rules defined in this plugin have to be prefixed by 'angular/'
+
+    ```js
+    import angular from "eslint-plugin-angular";
+
+    export default defineConfig([{
+      plugins: {
+        angular
+      },
+      rules: {
+        "angular/controller-name": "error"
+      }
+    }]);
     ```
 
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