added multi language build example

README.md

@@ -214,6 +214,39 @@ Generating static pages
 Static files generated
 ```
 
+### Multi language (i18n) ###
+
+To use a different language just provide a custom [page definition](i18n/) - in case the file is located in `i18n` you can use the `--lang option`
+
+**Example**
+```terminal
+$ npm run static -- --lang pt_BR
+
+> http-error-pages@0.6.0 static HttpErrorPages
+> node bin/generator.js static "--lang" "pt_BR"
+
+Paths
+ |- Config: HttpErrorPages/config.json
+ |- Template: HttpErrorPages/assets/template.ejs
+ |- Styles: HttpErrorPages/assets/layout.css
+ |- Pages: HttpErrorPages/i18n/pages-pt_BR.json
+
+Generating static pages
+ |- Page <HTTP404.html>
+ |- Page <HTTP400.html>
+ |- Page <HTTP401.html>
+ |- Page <HTTP403.html>
+ |- Page <HTTP500.html>
+ |- Page <HTTP501.html>
+ |- Page <HTTP502.html>
+ |- Page <HTTP520.html>
+ |- Page <HTTP503.html>
+ |- Page <HTTP521.html>
+ |- Page <HTTP533.html>
+Static files generated
+
+```
+
 ### Add custom pages ###
 
 Create custom error codes/pages used by e.g. CloudFlare