Update README.md

README.md

@@ -43,6 +43,13 @@
 - Integration with Hardware:
     - [Unity and Arduino](http://www.alanzucconi.com/2015/10/07/how-to-integrate-arduino-with-unity/)
     - [Week 11](http://fab.cba.mit.edu/classes/863.16/section.Harvard/people/Abdel-Rahman/index.html)
+- VR:
+    - [Tutorial 1: Circuit Stream](https://circuitstream.com/htc-vive-tutorial/)
+    - [Tutorial 2: VRTK](https://vrtoolkit.readme.io/)
+- AR:
+    - [Unity Project Link](https://www.dropbox.com/s/52hg99eg2hw73to/5_AR.zip?dl=0) 
+    - [AR Toolkit Unity](https://github.com/artoolkit/arunity5)
+    - [Marker Based AR] (https://assetstore.unity.com/packages/templates/tutorials/markerbased-ar-example-29678)
 - Topics Covered:
     - Unity Interface
     - First Script