Update README.md

README.md

@@ -5,3 +5,13 @@ Inkscape extension to create Layers from elements containing IfcClasses
 **Installation**
 
 To install copy the .py and .inx files to the Inkscape extensions folder (varies depending on your system, to open it go to Inkscape > Edit > Preferences > System > User extensions > Open)
+
+
+**ezdxf_exporter_effect**
+
+This file effect script for Inkscape export DXF file with layers from groups containing 
+class attributes starting with Ifc. It allows mapping layer name, color, lineweight and linetype
+and saving export settings.
+Depends on ezdxf library, to install it run:
+
+  `pip install ezdxf`