Update documentation and code snippets

docs/code_snippets/input_flags/snippet1.py

@@ -1,22 +1,23 @@
 from argenta import Command, Response, Router
 from argenta.command import Flag, Flags
 
-router = Router(title="Example")
 
+router = Router(title="Example")
 
 @router.command(
     Command(
         "example",
         description="Example command with flags",
-        flags=Flags([Flag("name"), Flag("age")]),
+        flags=Flags([
+            Flag("name"), 
+            Flag("age")
+        ]),
     )
 )
 def example_handler(response: Response):
-    # response.input_flags содержит коллекцию InputFlags
     input_flags = response.input_flags
 
-    # Проверяем наличие флагов
     if input_flags:
-        print(f"Received {len(input_flags.flags)} flag(s)")
+        print(f"Received {len(input_flags)} flag(s)")
     else:
         print("No flags provided")