message: doc: corrected typo error for button example
diff: @@ -13,7 +13,7 @@ make_flags!(Label, OnPress);
  /// styling from regular Html buttons.
  /// You can create a new button by using its constructor and chain styling.
  ///
  -/// # Examples
  +/// # Example
  /// ```no_run
  /// use zoon::*;
  /// let button = Button::new().s(Align::center()).s(Padding::all(5));
  