docs: add docs for telegram games

docs/channel-telegram-games.md

@@ -0,0 +1,42 @@
+---
+id: channel-telegram-games
+title: Gaming Platform
+---
+
+https://core.telegram.org/bots/games
+https://core.telegram.org/bots/api#games
+
+To get started, send the `/newgame` command to `@BotFather`.
+
+## Sending Games to Chats as Regular Messages
+
+```js
+async function App(context) {
+  await context.sendGame('your-game');
+}
+```
+
+game button
+
+```js
+async function App(context) {
+  await context.sendGame('your-game', {
+    replyMarkup: [[{ text: 'Play Now!', callbackGame: {} }]],
+  });
+}
+```
+
+> **Note:** This type of button must always be the first button in the first row.
+
+```js
+async function App(context) {
+  if (
+    context.event.isCallbackQuery &&
+    context.event.callbackQuery.gameShortName === 'your-game'
+  ) {
+    await context.answerCallbackQuery({
+      url: 'https://your-game.tld',
+    });
+  }
+}
+```

website/sidebars.json

@@ -16,13 +16,14 @@
       "channel-messenger-profile"
     ],
     "Guides (LINE)": [
-      "channel-line-setup", 
+      "channel-line-setup",
       "channel-line-handling-events",
       "channel-line-flex"
     ],
     "Guides (Telegram)": [
       "channel-telegram-setup",
-      "channel-telegram-handling-events"
+      "channel-telegram-handling-events",
+      "channel-telegram-games"
     ],
     "Guides (Slack)": ["channel-slack-setup", "channel-slack-handling-events"],
     "Guides (Viber)": ["channel-viber-setup", "channel-viber-handling-events"],