Add link for AL4MS

Author: ml-evs

README.md

@@ -27,6 +27,9 @@ exercises were initially provided to accompany the following workshops:
 - CECAM Flagship Workshop [Open Databases Integration for Materials
   Design](https://www.cecam.org/workshop-details/1120), May 30, 2022 -
   June 3, 2022.
+- [Actively Learning Materials
+  Science](https://sites.utu.fi/al4ms2023/), Aalto University, February
+  27, 2023 - March 3, 2023.
 
 This document is hosted on
 [GitHub](https://github.com/Materials-Consortia/optimade-tutorial-exercises),

notebooks/exercises.ipynb

@@ -22,6 +22,7 @@
     "- NOMAD CoE [Tutorial 6: OPTIMADE](https://th.fhi-berlin.mpg.de/meetings/nomad-tutorials/index.php?n=Meeting.Tutorial6), 7-8 September 2021\n",
     "- ICTP-EAIFR [Training School: Working with Materials Databases and OPTIMADE](https://eaifr.ictp.it/about/news/ml-for-es-and-md/), November-December 2021.\n",
     "- CECAM Flagship Workshop [Open Databases Integration for Materials Design](https://www.cecam.org/workshop-details/1120), May 30, 2022 - June 3, 2022.\n",
+    "- [Actively Learning Materials Science](https://sites.utu.fi/al4ms2023/), Aalto University, February 27, 2023 - March 3, 2023.\n",
     "\n",
     "This document is hosted on [GitHub](https://github.com/Materials-Consortia/optimade-tutorial-exercises), and all feedback or  suggestions for new exercises can be provided as an issue or pull request in that repository.\n",
     "\n",