Update review link from career to G2

Author: JanCizmar

README.md

@@ -10,7 +10,7 @@
 
 
 <h3 align="center">
-  <a href="https://tolgee.io/career" target="_blank" style="text-decoration: none;">
+  <a href="https://www.g2.com/products/tolgee/reviews" target="_blank" style="text-decoration: none;">
     🤫 Happy with Tolgee? Please review us on G2 🙏
   </a>
 </h3>