diff --git a/README.md b/README.md
index 01c5ba068c512abfae250dde3bd831b01d5cfe95..d4ba6eaa1f68c9e6f65e62c06afcfa44c395f9b4 100644
--- a/README.md
+++ b/README.md
@@ -25,13 +25,13 @@ Start your browser to use the Server and navigate to the url http://127.0.0.1:80
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 Working Concept.
 
-1. Create Data for the drawtool
-    1.1 draw or edit polygons with the buttons in top right legend 
-        in the PolyDrawTool tab on (https://docs.bokeh.org/en/latest/docs/user_guide/tools.html#edit-tools) is animated guide
-        in the PolyEditTool tab on the same site are explination for adding or deleting vertices
-        in some browser the delete button is not working for the draw tool because the website is accepting the input, you need to turn it off 
-        to delete vertices
-    1.2 With the polygon creator button
+1. Create Data for the drawtool, 
+draw or edit polygons with the buttons in top right legend 
+    - in the PolyDrawTool tab on (https://docs.bokeh.org/en/latest/docs/user_guide/tools.html#edit-tools) is animated guide
+    - in the PolyEditTool tab on the same site are explination for adding or deleting vertices
+    - in some browser the delete button is not working for the draw tool because the website is accepting the input, you need to turn it off 
+    - to delete vertices
+1.2 With the polygon creator button
     1.3 Or write your Polygons into the polygon.txt file, path: packing_polygons_pycharm/mysite/plots/polygon.txt,
         an example how to write the polygons to polygons.txt file is already included
         every line is representing one polygon
@@ -45,3 +45,11 @@ Working Concept.
     - best axis-aligned rectangular container from 0, 90, 180, 270 packed containers
     - recatngular container
 
+
+----------------------------------------------------------------------------
+Repository structure relevant files:
+
+The implemented polygon is in the file     
+packing_algo.py (mysite/plots/packing_algo.py)
+
+