[chore] Update README.md and CONTRIBUTING.md.

Author: Blarc

CONTRIBUTING.md

@@ -13,4 +13,4 @@ Contributions are **welcome**.
 - **One pull request per feature** - If you want to do more than one thing, send multiple pull requests.
 
 - **Send coherent history** - Make sure each individual commit in your pull request is meaningful. If you had to make 
-- multiple intermediate commits while developing, please [squash them] before submitting.
+multiple intermediate commits while developing, please [squash them] before submitting.

README.md

@@ -53,3 +53,22 @@ For Mac: <kbd>IntelliJ IDEA</kbd> > <kbd>Preferences</kbd> > <kbd>Plugins</kbd>
 ## Demo
 
 ![](./screenshots/plugin.gif)
+
+## Support
+
+* Star the repository
+* [Rate the plugin](https://plugins.jetbrains.com/plugin/19411-gitlab-template-lint)
+* [Share the plugin](https://plugins.jetbrains.com/plugin/19411-gitlab-template-lint)
+
+
+## Change log
+
+Please see [CHANGELOG](CHANGELOG.md) for more information what has changed recently.
+
+## Contributing
+
+Please see [CONTRIBUTING](CONTRIBUTING.md) for details.
+
+## License
+
+Please see [LICENSE](LICENSE) for details.