Update README.md

README.md

@@ -5,6 +5,8 @@ This repository contains the source code and documentation for the HPVM Compiler
 The README briefly describes how to get started with building and installing HPVM. It also provides a
 benchmark suite to test the compiler infrastructure.
 
+HPVM is currently at version 0.5. For more about what HPVM is, see [our website](https://publish.illinois.edu/hpvm-project/).
+
 ## Paper
 
 [PPoPP'18 paper](https://dl.acm.org/doi/pdf/10.1145/3200691.3178493)