Update README.md

Former-commit-id: b950b0f

Author: cying111

README.md

@@ -192,7 +192,7 @@ writeBambuOutput(se, path = "./bambu/")
 
 **bambu version 0.1.0**
 
-Release data: 29th May 2020
+Release date: 29th May 2020
 
 ### Contributors