added link in readme page

README.md

 **[Human Pose Labeling and Randomization Tutorial](com.unity.perception/Documentation~/HPTutorial/TUTORIAL.md)**  
 Step by step instructions for using the keypoint, pose, and animation randomization tools included in the Perception package. It is recommended that you finish Phase 1 of the Perception Tutorial above before starting this tutorial.
 
+**[FAQ](com.unity.perception/Documentation~/FAQ/FAQ.md)**  
+Check out our FAQ for a list of common questions, tips, tricks, and some sample code.
+
 ## Documentation
 In-depth documentation on individual components of the package.