update readme

README.md

@@ -5,14 +5,14 @@ Blender minimal version : 2.8
 **Mac users warning :** currently the addon does not work on Mac with Blender 2.80 to 2.82. Please do not report the issue here, it's already solved with Blender 2.83. Check [the bug report](https://developer.blender.org/T68243).
 
 
-[Wiki](https://github.com/domlysz/BlenderGIS/wiki/Home) - [FAQ](https://github.com/domlysz/BlenderGIS/wiki/FAQ) - [Quick start guide](https://github.com/domlysz/BlenderGIS/wiki/Quick-start)
+[Wiki](https://github.com/domlysz/BlenderGIS/wiki/Home) - [FAQ](https://github.com/domlysz/BlenderGIS/wiki/FAQ) - [Quick start guide](https://github.com/domlysz/BlenderGIS/wiki/Quick-start) - [Flowchart](https://raw.githubusercontent.com/wiki/domlysz/blenderGIS/flowchart.jpg)
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 ## Functionalities overview
 
 **GIS datafile import :** Import in Blender most commons GIS data format : Shapefile vector, raster image, geotiff DEM, OpenStreetMap xml.
 
-![](https://raw.githubusercontent.com/wiki/domlysz/blenderGIS/flowchart.png)
+There are a lot of possibilities to create a 3D terrain from geographic data with BlenderGIS, check the [Flowchart](https://raw.githubusercontent.com/wiki/domlysz/blenderGIS/flowchart.jpg) to have an overview.
 
 Exemple : import vector contour lines, create faces by triangulation and put a topographic raster texture.