You can find the latest PDF in the Releases.
Additional material recommended to the students during the course is now published on my blog.
Starting from 10.11.2021, the notes are released both using the TeX Gyre font and the Open Dyslexic font. Please consider supporting the Open Dyslexic font project.
Feel free to open issues or submit pull requests to improve the text, add more relevant references (especially if open access), or add more relevant content, and in this case don't forget to add yourself in the acknowledgements.