Update README.md

Author: Reiningecho90

README.md

@@ -5,4 +5,5 @@ The Flying Ostrich is the rocket me, and three other kids are working on to begi
 
 Updates:
 - Final launch prep is underway, finishing up the rocket this week maybe
-- Upper stage being finished today, with all flight hardware installed, lastly nosecone ballast
+- Upper stage being finished today, with all flight hardware installed, lastly nosecone ballast (4/46/2021)
+- Upper stage finished yesterday (4/26/2021) as all electronics are almost finished and ready for flight (4/27/2021)