docs: fixed dispatcher creation docs

docs/guide/dispatcher/errors.md

@@ -96,9 +96,9 @@ Errors are **not** propagated to parent dispatcher or to any of the children
 dispatchers:
 
 ```ts
-const dp = new Dispatcher(tg)
-const dp1 = new Dispatcher()
-const dp2 = new Dispatcher()
+const dp = Dispatcher.for(tg)
+const dp1 = Dispatcher.child()
+const dp2 = Dispatcher.child()
 
 dp.addChild(dp1)
 dp1.addChild(dp2)
@@ -117,9 +117,9 @@ dp1.onNewMessage(() => { throw new Error() })
 However, if you need that behaviour, you can use `propagateErrorToParent`:
 
 ```ts
-const dp = new Dispatcher(tg)
-const dp1 = new Dispatcher()
-const dp2 = new Dispatcher()
+const dp = Dispatcher.for(tg)
+const dp1 = Dispatcher.child()
+const dp2 = Dispatcher.child()
 
 dp.addChild(dp1)
 dp1.addChild(dp2)

docs/guide/dispatcher/groups-propagation.md

@@ -128,7 +128,7 @@ dp.onNewMessage(
   }
 )
 
-const dp1 = new Dispatcher()
+const dp1 = Dispatcher.child()
 dp.addChild(dp1)
 
 dp1.onNewMessage(

docs/guide/dispatcher/scenes.md

@@ -30,7 +30,7 @@ dp.addScene(SomeScene)
 If you don't use state within your scene, just don't pass anything:
 
 ```ts
-const scene = new Dispatcher()
+const scene = Dispatcher.scene()
 ```
 
 ::: tip
@@ -115,7 +115,7 @@ Alternatively, you can disable isolated storage for FSM altogether and use
 global state directly:
 
 ```ts
-const dp = new Dispatcher<BotState>()
+const dp = Dispatcher.scene<BotState>()
 // add handlers to `dp`
 
 export const SomeScene = dp

docs/guide/dispatcher/state.md

@@ -180,9 +180,9 @@ keying mechanism too, if you want:
 ```ts
 const customKey = (upd) => ...
 
-const dp = new Dispatcher<BotState>(tg, storage, customKey)
+const dp = Dispatcher.for<BotState>(tg, { storage, key: customKey })
 // or, locally for a child dispatcher:
-const dp = new Dispatcher<BotState>(customKey)
+const dp = Dispatcher.child<BotState>({ key: customKey })
 ```
 
 

docs/guide/intro/errors.md

@@ -124,7 +124,7 @@ Unhandled errors that had happened inside dispatcher's handlers
 can be handled as well:
 
 ```ts
-const dp = new Dispatcher()
+const dp = Dispatcher.child()
 
 dp.onError((error, update, state) => {
   console.log(error)

docs/guide/intro/updates.md

@@ -138,7 +138,7 @@ a separate section. For now, let's just register a dispatcher and add a simple h
 
 ```ts
 const tg = new TelegramClient(...)
-const dp = new Dispatcher(tg)
+const dp = Dispatcher.for(tg)
 
 dp.onNewMessage(async (msg) => {
   await msg.forwardTo('me')