Update README.md

Author: tarehart

README.md

@@ -1,7 +1,13 @@
 # RLBotPythonExample
 Example of a python bot using the RLBot framework
 
-## Instructions
+## Installation
+
+### Video guide
+
+https://www.youtube.com/watch?v=UjsQFNN0nSA
+
+### Plain instructions
 
 1. Make sure you've installed [Python 3.6 64 bit](https://www.python.org/ftp/python/3.6.5/python-3.6.5-amd64.exe). During installation:
    - Select "Add Python to PATH"