use csharp syntax on csharp tab (#3300)

getting_started/step_by_step/your_first_game.rst

@@ -377,7 +377,7 @@ Let's place this code at the end of our ``_process()`` function:
             // See the note below about boolean assignment
             animatedSprite.FlipH = velocity.x < 0;
         }
-        else if(velocity.y != 0)
+        else if (velocity.y != 0)
         {
             animatedSprite.Animation = "up";
             animatedSprite.FlipV = velocity.y > 0;
@@ -397,11 +397,14 @@ Let's place this code at the end of our ``_process()`` function:
 
            .. code-tab:: csharp
 
-             if velocity.x < 0:
-                 animatedSprite.FlipH = true
-             else:
-                 animatedSprite.FlipH = false
-
+             if (velocity.x < 0)
+             {
+                 animatedSprite.FlipH = true;
+             }
+             else
+             {
+                 animatedSprite.FlipH = false;
+             }
 Play the scene again and check that the animations are correct in each
 of the directions. When you're sure the movement is working correctly,
 add this line to ``_ready()``, so the player will be hidden when the game