Update README.md

README.md

@@ -1,5 +1,5 @@
 # AMD MIGraphX
-Fork sanitize test & ref3
+Fork sanitize test & ref4
 
 AMD MIGraphX is AMD's graph inference engine, which accelerates machine learning model inference.
 To use MIGraphX, you can install the binaries or build from source code. Refer to the following sections