Issue #0: Update README, add line in gitignore

README.md

@@ -7,6 +7,12 @@ A library that extends and improves the default options provided by [BackstopJS]
 composer require --dev metadrop/backstopjs-addons
 ```
 
+Add the path of the "bacsktopjs-addons" folder to the project's .gitignore, for example:
+
+```bash
+/tests/backstopjs/common/libraries/
+```  
+
 You can override the default destination of the library ("tests/backstopjs/common/libraries/backstopjs-addons") by adding the following parameter to the extra section
 of your project's composer.json file: