docs: support docs versioning, new update hook decorators docs added

website/versioned_docs/version-1.3.0/telegraf-methods.md

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+---
+id: telegraf-methods
+title: Telegraf methods
+sidebar_label: Telegraf methods
+slug: /telegraf-methods
+---
+
+Each Telegraf instance method described [here](https://telegraf.js.org/#/?id=telegraf) has own decorator in `nestjs-telegraf` package. The name of the decorator corresponds to the name of the Telegraf method. For example [`@Hears`](https://telegraf.js.org/#/?id=hears), [`@On`](https://telegraf.js.org/#/?id=on), [`@Action`](https://telegraf.js.org/#/?id=action) and so on.
+
+Now let's try to repeat the example from the Telegraf [documentation page](https://telegraf.js.org/#/?id=example).
+
+```typescript
+/* app.service.ts */
+
+import { Injectable } from '@nestjs/common';
+import {
+  Start,
+  Help,
+  On,
+  Hears,
+  Context,
+} from 'nestjs-telegraf';
+
+@Injectable()
+export class AppService {
+  @Start()
+  start(ctx: Context) {
+    ctx.reply('Welcome');
+  }
+
+  @Help()
+  help(ctx: Context) {
+    ctx.reply('Send me a sticker');
+  }
+
+  @On('sticker')
+  on(ctx: Context) {
+    ctx.reply('👍');
+  }
+
+  @Hears('hi')
+  hears(ctx: Context) {
+    ctx.reply('Hey there');
+  }
+}
+```