added manual

docs/notes.typ

@@ -0,0 +1,23 @@
+/// Creates a note
+/// - side (str): The side on which to place the note (see @@SIDES for accepted values)
+/// - content (content): The note's content
+/// - pos (none, str, array): Optional participant(s) on which to draw next to / over. If `side` is "left" or "right", sets next to which participant the note is placed. If `side` is "over", sets over which participant(s) it is placed
+/// - color (color): The note's color
+/// - shape (str): The note's shape (see @@SHAPES for accepted values)
+/// - aligned (bool): True if the note is aligned with another note, in which case `side` must be `"over"`, false otherwise
+#let _note(
+  side,
+  content,
+  pos: none,
+  color: rgb("#FEFFDD"),
+  shape: "default",
+  aligned: false
+) = {}
+
+/// Accepted values for `shape` argument of @@_note()
+/// #examples.notes-shapes
+#let SHAPES = ("default", "rect", "hex")
+
+/// Accepted values for `side` argument of @@_note()
+/// #examples.notes-sides
+#let SIDES = ("left", "right", "over", "across")