Let’s keep the references clear.
Found a wrong note, a confusing explanation or a broken download? A specific report helps us check it.
What to include
Include the page URL, the note or diagram concerned and the result you expected. For file problems, mention the file format and the app you used to open it.
Reuse and other questions
See the file licensing page for the download permissions. For other reuse requests, identify the material and how you plan to use it.