updated todo

README.md

@@ -5,8 +5,13 @@ Show, view and edit prescriptions in a web browser (preferably chromium)
 
 #TODO
 * Fix some bugs
-* Add drawing for variable wavelengths
+* Add drawing for variable wavelengths (need Sellmeier's coefficients)
 * Show some usefull info like: optical power, index of refraction, distance between elements along with thicknesses
+* Add converter from OSLO *.len format
+* Add converter from Zemax *.zmx format
+* Add design files download links
+* Add opening a local file
+* Extend glass library
 
 #LICENSE
 AGPL, see http://www.gnu.org/licenses/agpl.txt