Fixed doc

Author: victortotem

docs/options/generate.md

@@ -1,17 +1,25 @@
 # generate
 
-### Type: `string` | null
+### Type: null | `string`
 
-Add a suffix after all your types
-
-## Exemples
+This command will start generation based on your `.sgtsrc.js` file.
 
 ```bash
 sgts generate
 ```
 
+```bash
+sgts generate <env?>
+```
+
+## Exemples
+
 ```bash
 sgts generate testing
 ```
 
+::: tip
+The `generate` command will by default always load your `.env` and your `.env.development` file so you can use your environnement variables in your configuration file
+:::
+
 See [Configuration file doc](https://sgts.netlify.com/configuration/config.html)