diff --git a/README.md b/README.md
index b0f73233255f6f8ae4ed91712d56d84db2572a3a..36528e64f1d402eb7417bb80285082c82223470f 100644
--- a/README.md
+++ b/README.md
@@ -41,18 +41,18 @@ See also the `src/` directory for more examples.
 In Dune-Grid there is a VTK writer available, that is a bit different from the
 proposed one. A comparions:
 
-| *Property*         | *Dune-Grid* | *Dune-Vtk* |
-| ------------------ | :-------: | :------: |
-| VTK version        | 0.1       | 1.0      |
-| UnstructuredGrid   | x         | x        |
-| PolyData           | x         | -        |
-| StructuredGrid     | -         | x        |
-| RectilinearGrid    | -         | x        |
-| ImageData          | -         | x        |
-| ASCII              | x         | x        |
-| BASE64             | x         | -        |
-| APPENDED_RAW       | x         | x        |
-| APPENDED_BASE64    | x         | -        |
-| BASE64_COMPRESSED  | -         | -        |
-| APPEDED_COMPRESSED | -         | x        |
-| Parallel files     | x         | x        |
+| **Property*        | **Dune-Grid** | **Dune-Vtk** |
+| ------------------ | :-----------: | :----------: |
+| VTK version        | 0.1           | 1.0          |
+| UnstructuredGrid   | **x**         | **x**        |
+| PolyData           | **x**         | -            |
+| StructuredGrid     | -             | **x**        |
+| RectilinearGrid    | -             | **x**        |
+| ImageData          | -             | **x**        |
+| ASCII              | **x**         | **x**        |
+| BASE64             | **x**         | -            |
+| APPENDED_RAW       | **x**         | **x**        |
+| APPENDED_BASE64    | **x**         | -            |
+| BASE64_COMPRESSED  | -             | -            |
+| APPEDED_COMPRESSED | -             | **x**        |
+| Parallel files     | **x**         | **x**        |