Update part3d.md

Mention what needs to be changed

Author: MarcGuay

src/content/3/en/part3d.md

@@ -226,7 +226,7 @@ We will answer all of the questions:
 
 ![terminal output from ESlint init](../../images/3/52new.png)
 
-The configuration will be saved in the _.eslintrc.js_ file:
+The configuration will be saved in the _.eslintrc.js_ file.  We will change `browser` to `node` in the `env` configuration:
 
 ```js
 module.exports = {