Fix formatting in visualizationexample4.md

Author: sahehb

mevislab.github.io/content/tutorials/visualization/visualizationexample4.md

@@ -18,7 +18,7 @@ menu:
 {{< youtube "WaD6zuvVNek" >}}
 
 ## Introduction
-In the previous example you learned how to use the module `SoView2DOverlay` together with a `View2D`. MeVisLab provides a whole family of `SoView2D*` modules (`SoView2DOverlay`, `SoView2DRectangle`, `SoView2DGrid`, ...). These modules are derived from SoView2DExtension, which extends the SoView2D with specialized interaction and rendering. `SoView2D` itself renders a slice or a slab of a voxel image as a 2D image on the screen.
+In the previous example you learned how to use the module `SoView2DOverlay` together with a `View2D`. MeVisLab provides a whole family of `SoView2D*` modules (`SoView2DOverlay`, `SoView2DRectangle`, `SoView2DGrid`, ...). These modules are derived from `SoView2DExtension`, which extends the `SoView2D` with specialized interaction and rendering. `SoView2D` itself renders a slice or a slab of a voxel image as a 2D image on the screen.
 
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