README.md in theme-check-1.11.0 vs README.md in theme-check-1.12.0

@@ -188,5 +188,9 @@
 - `themeCheck.onlySingleFileChecks` (default: `false`) makes it so we only check the opened files and disable "whole theme" checks (e.g. UnusedSnippet, TranslationKeyExists)
 
 ⚠️ **Note:** Quickfixes only work on a freshly checked file. If any of those configurations are turned off, you will need to rerun theme-check in order to apply quickfixes.
 
 In VS Code, these can be set directly in your `settings.json`.
+
+## Contributing
+
+For guidance on contributing, refer to this [doc](/CONTRIBUTING)