Update docstring

dxf_to_csv/dxf_to_csv.py

@@ -1,7 +1,7 @@
 """Extract points from a dxf file, and save in csv format
 
 Usage:
-  dxf_to_csv.py [-h] [-n LAYER_NAME] [-l] dxf_name
+  dxf_to_csv [-h] [-n LAYER_NAME] [-l] dxf_name
 
 Positional arguments:
   dxf_name       path to dxf file
@@ -14,13 +14,13 @@ Optional arguments:
 Examples:
 
 Show available layers:
-> python dxf_to_csv.py drawing.dxf -l
+> dxf_to_csv drawing.dxf -l
 
 Convert all layers:
-> python dxf_to_csv.py drawing.dxf
+> dxf_to_csv drawing.dxf
 
 Convert specific layer:
-> python dxf_to_csv.py drawing.dxf -n LAYER_NAME
+> dxf_to_csv drawing.dxf -n LAYER_NAME
 
 """