Update CONTRIBUTING.md

Author: lucagiove

CONTRIBUTING.md

@@ -57,24 +57,13 @@ are mainly tracked the priorities and plans for the next versions.
 
 Of course you can always reply to issues and review pull requests.
 
-## Robot Framework Milano Meetup
-During the 17th April 2020 meetup we had the following todo list. 
-
-### New plans for 0.8 version
-- [X] **Feature:** [New On Session keywords](https://github.com/MarketSquare/robotframework-requests/issues/276)
-- [X] **Experiment:** [Reorganize Keywords in classes](https://github.com/MarketSquare/robotframework-requests/issues/270)
-- [X] **Documentation:** Write a better introductive documentation to keywords (session best practices, parameters description, response object)
-
 ### Early Adopters and feedback needed for pre-release versions
 You can install pre-release versions in this way:
 
     pip install robotframework-requests --pre
 
-### Others
-- [X] **Review PR:** [Support sending arrays in query string and request body](https://github.com/MarketSquare/robotframework-requests/pull/220)
+### Possible topic of interest:
 - [ ] **Review PR:** [disable cert warnings](https://github.com/MarketSquare/robotframework-requests/pull/209)
-- [X] **Feature:** [Allow passing auth param to create client cert session](https://github.com/MarketSquare/robotframework-requests/issues/245)
-- [X] **Tech:** [Deprecate To Json keyword in favor of response.json attribute](https://github.com/MarketSquare/robotframework-requests/issues/219)
 - [ ] **Tech**: Moving all tests to local http server (Flask)
 - [ ] **Challenge**: Start local http server (Flask) only once per test run instead of start/stop for each suite