Updated the docs on the /tutor_good_pgn command

docs/tutor-good-pgn.md

@@ -0,0 +1,28 @@
+# /tutor_good_pgn
+
+Explains the why of a good move in terms of chess concepts.
+
+---
+
+### Usage
+
+#### Example
+
+Starts a classical game to play 1.e4 e5 2.f4 asking the chess tutor for a good move.
+
+```js
+ws.send('/start "{\\"variant\\":\\"classical\\",\\"mode\\":\\"analysis\\"}"');
+ws.send('/play_lan "{\\"color\\":\\"w\\",\\"lan\\":\\"e2e4\\"}"');
+ws.send('/play_lan "{\\"color\\":\\"b\\",\\"lan\\":\\"e7e5\\"}"');
+ws.send('/play_lan "{\\"color\\":\\"w\\",\\"lan\\":\\"f2f4\\"}"');
+ws.send('/tutor_good_pgn');
+```
+
+```text
+{
+  "/tutor_good_pgn": {
+    "pgn": "c5",
+    "paragraph": "White has a moderate control of the center. White has a slight space advantage. These pieces are hanging: The rook on a1, the rook on h1, the rook on a8, the rook on h8, the pawn on e4, the pawn on c5. Overall, 3 evaluation features are favoring White."
+  }
+}
+```

mkdocs.yml

@@ -38,6 +38,7 @@ nav:
       - /start: start.md
       - /stockfish: stockfish.md
       - /tutor_fen: tutor-fen.md
+      - /tutor_good_pgn: tutor-good-pgn.md
   - binary:
     - Parameterized:
       - /image: image.md