docs(eslint-plugin): Add eslint:recommended to a usage example (#591)

packages/eslint-plugin/README.md

@@ -43,14 +43,26 @@ Then configure the rules you want to use under the rules section.
 }
 ```
 
-You can also enable all the recommended rules at once. Add `plugin:@typescript-eslint/recommended` in extends:
+You can also enable all the recommended rules for our plugin. Add `plugin:@typescript-eslint/recommended` in extends:
 
 ```json
 {
   "extends": ["plugin:@typescript-eslint/recommended"]
 }
 ```
 
+You can also use [eslint:recommended](https://eslint.org/docs/rules/) with this plugin. Add both `eslint:recommended` and `plugin:@typescript-eslint/eslint-recommended`:
+
+```json
+{
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended"
+  ]
+}
+```
+
 If you want to use rules which require type information, you will need to specify a path to your tsconfig.json file in the "project" property of "parserOptions".
 
 ```json