+### Groups
+
+You can group nodes together by using `[Group] NodeA NodeB...`. eg.
+
+- `[Group] Tinker Tailor Soldier`
+
+### Notes
+
+You can add notes `[Note] (x, y) Text` where x and y are numbers, and Text is
+any text with spaces or `\n`.
+
+- `[Note] (30, 45) Here we want to call out an explanation or context.`
+- `[Note] (90, 25) We're close to the edge \n so we can multiline it.`
+