Update README.md add known bugs

README.md

@@ -18,10 +18,16 @@ This small program should answer all these questions.
 +4.  Find the position of the moon at a spesific time -- Implemented and equations seem to be sufficiently precise (~ ± 2°) 
 +5.  Present all calculated data in the GUI -- Most of the data is showen
 +6.  Create the location search -- A simple offline search is implemented now more will follow
--7.  Plotting graphs is still a topic of discussion. Update: Probably "Cairo", more work but more "gtk like"
--8.  Implement "smarphone functionality" e.g. find location via GPS
-+9.  Insert a map view with OSM
--10. Visualise important data direktly on the map
+-7.  Implement "smarphone functionality" e.g. find location via GPS
++8.  Insert a map view with OSM
++9.  Visualise important data direktly on the map
+```
+
+## Known Bugs
+```diff
+-1.  Automatic timezone selection is not very precise. For the timezone selection libgweather is used and the offline list has just a limited amount of datapoints which can result in a selection of the wrong timezone.
+-2.  Map has some zoome levels which appear blurred. This could might be solved by switching to another renderer.
+-3.  Docking PicPlanner to one half of the screen can result in a wrong, buggy view. I have no idea how this can happen.
 ```
 
 ## Formulas used