Adding video controls overlay to screenshot

README.md

@@ -1,6 +1,6 @@
 # Oboe [![Build Status](https://travis-ci.org/google/oboe.svg?branch=master)](https://travis-ci.org/google/oboe)
 
-[![Introduction to Oboe video](https://img.youtube.com/vi/csfHAbr5ilI/0.jpg)](https://www.youtube.com/watch?v=csfHAbr5ilI)
+[![Introduction to Oboe video](docs/images/getting-started-video.jpg)](https://www.youtube.com/watch?v=csfHAbr5ilI)
 
 Oboe is a C++ library which makes it easy to build high-performance audio apps on Android. It was created primarily to allow developers to target a simplified API that works across multiple API levels back to API level 16 (Jelly Bean).