Update README.md (#157)

Author: Stigmatoz

README.md

@@ -1,5 +1,7 @@
 # Web Activity Time Tracker <a href="https://chrome.google.com/webstore/detail/web-activity-time-tracker/hhfnghjdeddcfegfekjeihfmbjenlomm" rel="nofollow"><img src="https://user-images.githubusercontent.com/768070/51865757-87d45300-2347-11e9-84fd-bafff5b036b2.png" alt="Add to Chrome" style="max-width:100%;"></a>
 
+⚠️⚠️⚠️ **Important notice! The Chrome extension has been sold. So I am not responsible for any changes to the functionality of the extension.** ⚠️⚠️⚠️
+
 [![Chrome Web Store](https://img.shields.io/chrome-web-store/d/hhfnghjdeddcfegfekjeihfmbjenlomm.svg?&label=Chrome%20users&ogo=google-chrome&logoColor=white)](https://chrome.google.com/webstore/detail/web-activity-time-tracker/hhfnghjdeddcfegfekjeihfmbjenlomm)
 [![Chrome Web Store](https://img.shields.io/chrome-web-store/rating/hhfnghjdeddcfegfekjeihfmbjenlomm?&logoColor=white;label=Rating)](https://chrome.google.com/webstore/detail/web-activity-time-tracker/hhfnghjdeddcfegfekjeihfmbjenlomm)
 [![Chrome Web Store](https://img.shields.io/chrome-web-store/v/hhfnghjdeddcfegfekjeihfmbjenlomm.svg?&logo=google-chrome&logoColor=white)](https://chrome.google.com/webstore/detail/web-activity-time-tracker/hhfnghjdeddcfegfekjeihfmbjenlomm)