docs: Remove mention of sourceType in the recommended config (#515)

The recommended configuration doesn't set `sourceType` to `script` anymore. See #514

Author: Zwyx

README.md

@@ -39,10 +39,11 @@ npm install eslint-plugin-eslint-plugin --save-dev
 
 Here's an example ESLint configuration that:
 
-- Sets `sourceType` to `script` for CJS plugins (most users) (use `module` for ESM/TypeScript)
 - Enables the `recommended` configuration
 - Enables an optional/non-recommended rule
 
+Note: you might need to set `sourceType` to `script` (most users) (use `module` for ESM/TypeScript).
+
 ### <a name='eslintrc'></a>**[.eslintrc.json](https://eslint.org/docs/latest/use/configure/configuration-files)**
 
 ```json