update README

README.md

@@ -65,19 +65,17 @@ and all plotting functions will do nothing. This also is the default.
 
 ## Available plotting backends and functionality.
 
-The main supported backends are GLMakie and PyPlot.
-
 - 'i' means some level of interactive control
 - '(y)' means avaiability only on rectangular resp. cuboid grids.
 
-|            | PyPlot | GLMakie | Plots | VTKView | PlutoVista |
-|------------|--------|---------|-------|---------|------------|
-| scalar, 1D | y      | y       | y     | y       | y,i        |
-| grid, 1D   | y      | y       | y     | n       | n          |
-| scalar, 2D | y      | y,i     | (y)   | y,i     | y          |
-| grid, 2D   | y      | y,i     | (y)   | y,i     | n          |
-| scalar, 3D | y      | y,i     | no    | y,i     | n          |
-| grid, 3D   | y      | y,i     | no    | y,i     | n          |
+|            | PyPlot | GLMakie | PlutoVista | Plots | VTKView |
+|------------|--------|---------|------------|-------|---------|
+| scalar, 1D | y      | y       | y,i        | y     | y       |
+| grid, 1D   | y      | y       | y          | y     | n       |
+| scalar, 2D | y      | y,i     | y          | (y)   | y,i     |
+| grid, 2D   | y      | y,i     | y          | (y)   | y,i     |
+| scalar, 3D | y      | y,i     | y,i        | no    | y,i     |
+| grid, 3D   | y      | y,i     | y,i        | no    | y,i     |
 
 
 For 2D plots, CairoMakie works as well.
@@ -104,5 +102,5 @@ Plotting within Pluto notebooks for PyPlot, Plots, GLMakie is working.
 
 Plotting in Pluto notebooks using [PlutoVista.jl](https://github.com/j-fu/PlutoVista.jl) is under
 development - see the example notebook: [pluto](https://raw.githubusercontent.com/j-fu/GridVisualize.jl/main/examples/plutovista.jl),
-[html](https://j-fu.github.io/GridVisualize.jl/dev/plutovista.html)
+[html](https://j-fu.github.io/GridVisualize.jl/dev/plutovista.html).