diff --git a/README.md b/README.md
index faedce8..c997f6c 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,21 @@
 # quickhull
 
-## TODO:
-
-- Point class
-
-    - adding "features" such as "IsInTriangle", ... ?
-
-    - direct member access instead of getters?
-
 ## dependencies
 
 for the visual graphic display SFML is needed (https://www.sfml-dev.org/download/sfml/2.5.1/) if you want to compile the program on your own,
 the deployed release uses static linkage.
+
+## program arguments
+```
+-v                   mode with enabled visualization
+-akl                 using Akl-Toussaint heuristic beforehand
+                     https://en.wikipedia.org/wiki/Convex_hull_algorithms#Akl%E2%8
+-f <filename>        read random numbers from file
+-rngCount <count>    generates count random float values
+-rngMode <mode>      if generating float values this specifies the mode:
+                     1. random numbers in screen range
+                     2. numbers are ordered as rectangle
+                     3. numbers are ordered as circle around screen center
+-runs <count>        runs performance mode multiple times
+-stepsize <size>     time between autosteps; if 0 or not provided -> manual steps
+```