Update codes.do.txt

mhjensen · mhjensen · commit e0506b80f058 · 2025-06-13T08:09:01.000+02:00
diff --git a/doc/Programs/OOcodes/codes.do.txt b/doc/Programs/OOcodes/codes.do.txt
@@ -1,6 +1,6 @@
 TITLE: Writing your own library
 AUTHOR: Morten Hjorth-Jensen {copyright, 1999-present|CC BY-NC} at Department of Physics, University of Oslo, Norway
-DATE: June 12, 2025
+DATE: June 16, 2025
 
 
 
