✏ Fix typo in docs/tutorial/arguments/optional.md (#602)

Co-authored-by: Tadas Gedgaudas <[email protected]>

docs/tutorial/arguments/optional.md

@@ -93,7 +93,7 @@ It's still not very useful, but it works correctly.
 And being able to declare a **required** *CLI argument* using
 
 ```Python
-name: Annoated[str, typer.Argument()]
+name: Annotated[str, typer.Argument()]
 ```
 
 ...that works exactly the same as