Add "by WG" with a date, like our other guides

Signed-off-by: David A. Wheeler <[email protected]>

Author: david-a-wheeler

docs/Simplifying-Software-Component-Updates.md

@@ -1,5 +1,7 @@
 # Simplifying Software Component Updates
 
+*by the [Open Source Security Foundation (OpenSSF)](https://openssf.org) [Best Practices Working Group](https://best.openssf.org/), 2025-04-24*
+
 This document guides component creators and component users to simplify updates and help avoid backward incompatibility problems when updating. A key technique is for component developers to avoid creating backward incompatibilities wherever practical. ***Backward-incompatible changes to an application programmer interface (API) often lead to unaddressed security vulnerabilities*.**
 
 ## Introduction