Saving all material from last year in the archive.

README.md

@@ -1,7 +1,8 @@
 # Applied Optimization and Machine Learning
 
-This repo contains all the materials I used while giving the course Applied
-Optimization and Machine Learning techniques during year 2021/2022.
+This repo contains all the materials I use while giving the course Applied
+Optimization and Machine Learning techniques and its sibling Practical Data
+Science for Operations Management during year 2022/2023.
 
 It contains the following materials:
 
@@ -16,3 +17,6 @@ It contains the following materials:
     - Memories I want to keep.
     - Interesting materials that I did not directly use during the course.
     - Ideas for next year.
+
+The repository also contains all files from previous editions in the `archive`
+folder.