Update TableOfContents.md

com.unity.perception/Documentation~/TableOfContents.md

 * [Unity Perception Package](index.md)
   * [Quick Installation Instructions](SetupSteps.md)
-  * [Perception Tutorial](GettingStarted.md)
-  * [Labeling](GroundTruthLabeling.md)
-  * [Perception Camera](PerceptionCamera.md)
-  * [Dataset capture](DatasetCapture.md)
-  * [Randomization](Randomization/index.md)
-    * [Parameters](Randomization/Parameters.md)
-    * [Samplers](Randomization/Samplers.md)
-    * [Scenarios](Randomization/Scenarios.md)
-    * [Tutorial](Randomization/Tutorial.md)
+  * [Perception Tutorial](Tutorial/TUTORIAL.md)
+  * Package Documentation
+    * [Labeling](GroundTruthLabeling.md)
+    * [Perception Camera](PerceptionCamera.md)
+    * [Dataset capture](DatasetCapture.md)
+    * [Randomization](Randomization/index.md)
+      * [Parameters](Randomization/Parameters.md)
+      * [Samplers](Randomization/Samplers.md)
+      * [Scenarios](Randomization/Scenarios.md)
+      * [Tutorial](Randomization/Tutorial.md)