Update docs/tutorial.md

Co-authored-by: Iaroslav Postovalov <38042667+CommanderTvis@users.noreply.github.com>

docs/tutorial.md

@@ -253,7 +253,8 @@ Now, let's make a custom hexagon.
     Point3D(12, 16, 0),
     Point3D(10, 16, -5),
     Point3D(6.5, 12, -3),
-        name = "custom_hexagon"){
+    name = "custom_hexagon"
+) {
     color("brown")
 }
    ```
@@ -370,4 +371,3 @@ tube(50, 40, 20, 0f, PI, name = "fragmented tube"){
 `extruded` is set by two values: `shape`, and `layer`. 
 * `shape` is a value of `List<Point2D>` type. It' s just a list of all points of the solid. *`shape` has to consist of not less than two points!*
 * `layer` is `MutableList` types variable. (here is a sentence with description of the work of this function). *The amount of `layer`-s has to be more than one*
-