update of further improvements

Conclusion.md

@@ -43,19 +43,19 @@ completing. Surely, the list is not complete and may change in time.
   features for the best user experience in all roles. This task is suitable for
   people with basic web programming experience, React and Redux knowledge is an
   advantage.
-- Create web editor of job configuration. ReCodEx job evaluation follows quite
+- ~~Create web editor of job configuration. ReCodEx job evaluation follows quite
   complex task flow. To create valid configuration, author of exercise has to
   write a pretty long YAML file by hand. This of course can be partially or
   fully automated but was not implemented at time. This task therefore consist
   of creating web based editor of this configuration with prepared task
   templates allowing user to change their properties and connect them. After
-  submit, YAML job configuration should be properly created.
-- Write alternative commandline frontend. A lot of users want to submit their
+  submit, YAML job configuration should be properly created.~~
+- ~~Write alternative commandline frontend. A lot of users want to submit their
   solutions directly from command line. That is newly possible in ReCodEx
   because of REST API, but no suitable frontend exists yet. There is unfinished
   attempt to create one in NodeJS, accessible in ReCodEx organization on
   [GitHub](https://github.com/ReCodEx/cli). The goal is to finish this project
-  or create alternative tool. We would like to see one written in Python.
+  or create alternative tool. We would like to see one written in Python.~~
 - Create mobile frontend. It would be really nice to have mobile application
   when you can read exercise assignments and examine your progress and
   statistics. All is possible due to ReCodEx REST API. The basic Android
@@ -75,11 +75,11 @@ completing. Surely, the list is not complete and may change in time.
   be used generally for sandboxing on Windows. The goal is to finish
   implementation and do a really detailed security audit of the project. Also,
   integration to the worker is not fully done yet.
-- SIS integration. A very nice feature is (semi)automatic creation of groups and
+- ~~SIS integration. A very nice feature is (semi)automatic creation of groups and
   assigning students to them depending on their timetable in student information
   system (SIS). However there is no standardized API for such communication yet,
   but we hope this will be possible in the future. Implementing this feature
-  means extending ReCodEx API by a SIS module in PHP.
+  means extending ReCodEx API by a SIS module in PHP.~~
 
 
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