Update README.md

README.md

-# books
+# Books and lecture notes
+A public repository of the books/lecture notes I have written:
 
-A repository containing books/notes written by me
\ No newline at end of file
+## Introduction to machine learning and data mining
+Currently used in **02450** at DTU
+```bibtex
+@book{herlau02450,
+	author = {Herlau, Tue and Mørup, Morten and Schmidt, Mikkel N.},
+    publisher = {DTU lecture notes},
+	title = {Introduction to Machine Learning and Data Mining},
+	year = {2021},
+}  
+```
+
+## Sequential decision making
+Currently used in **02465** at DTU
+```bibtex
+@book{herlau,
+	author  = {Tue Herlau},
+    publisher = {DTU lecture notes},
+	title   = {Sequential Decision Making},
+	year    = {2021},
+}
+```
+
+## Note for students:
+These copies may not be completely up-to-data. Use the version of the books/lecture notes found on DTU Learn.