Update README

Author: iritkatriel

README

@@ -2,5 +2,7 @@ This repo is used as a place to discuss adding a concept of exception
 groups (also known as multi-errors) to Python 3.10. Checkout Issues
 for more information.
 
-Experimental implementation : https://github.com/iritkatriel/cpython/tree/exceptionGroup-stage4
-(PR for discussion: https://github.com/iritkatriel/cpython/pull/7)
+Experimental implementation : https://github.com/iritkatriel/cpython/tree/exceptionGroup-stage5
+PRs for discussion: 
+ExceptionGroup and except*:        https://github.com/iritkatriel/cpython/pull/7
+Plus raise inside except* block:   https://github.com/iritkatriel/cpython/pull/8