Add basic documentation for notes tool

docs/notes.rst

@@ -0,0 +1,42 @@
+notes
+=====
+
+.. dfhack-tool::
+    :summary: Manage map-specific notes
+    :tags: fort interface map
+
+The `notes` tool enables players to annotate specific tiles
+on the Dwarf Fortress game map with customizable notes.
+
+Each note is displayed as a green pin on the map and includes a one-line title and a detailed comment.
+
+It can be used to e.g.:
+ - marking plans for future constructions
+ - explaining mechanisms or traps
+ - noting historical events
+
+Usage
+-----
+
+::
+
+    notes add
+
+Add new note in the current position of the keyboard cursor.
+
+Creating a Note
+~~~~~~~~~~~~~~~
+1. Use the keyboard cursor to select the desired map tile where you want to place a note.
+2. Execute ``notes add`` via the DFHack console.
+3. In the pop-up dialog, fill in the note's title and detailed comment.
+4. Press :kbd:`Alt` + :kbd:`S` to create the note.
+
+Editing or Deleting a Note
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+- Click on the green pin representing the note directly on the map.
+- A dialog will appear, offering options to edit the title or comment, or to delete the note entirely.
+
+Managing Notes Visibility
+~~~~~~~~~~~~~~~~~~~~~~~~~
+- Access the ``DFHack Control Panel`` / ``UI Overlays`` tab.
+- Toggle the ``notes.map-notes`` overlay to show or hide the notes on the map.