Fix appium link (#4402)

QA-roadmap-appium website - new link provided
fix: #4205

src/data/roadmaps/qa/content/103-qa-automated-testing/101-mobile-automation/100-appium.md

@@ -6,5 +6,5 @@ Visit the following resources to learn more:
 
 - [Appium Website](https://appium.io/)
 - [Appium Tutorial for Mobile Application Testing](https://www.browserstack.com/guide/appium-tutorial-for-testing)
-- [Appium Website](https://appium.io/docs/en/about-appium/intro/)
+- [Appium Website](https://appium.io/docs/en/2.0/intro/)
 - [Appium example tests on Github](https://github.com/appium/appium/tree/1.x/sample-code)