fix date

Author: Daniel-Mietchen

ECSA2016.md

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 # About
-This file hosts a session proposal for the [First International ECSA Conference 2016](http://www.ecsa2016.eu/) "Citizen Science – Innovation in Open Science, Society and Policy" that was held in Berlin on 19–21 May, 2016. The session proposal was submitted on December 14 and rejected on December 19, 2016. 
+This file hosts a session proposal for the [First International ECSA Conference 2016](http://www.ecsa2016.eu/) "Citizen Science – Innovation in Open Science, Society and Policy" that was held in Berlin on 19–21 May, 2016. The session proposal was submitted on December 14 and rejected on December 19, 2015. 
 
 At the conference itself, there was an unconference session (called ThinkCamp — see [program](http://www.ecsa2016.eu/assets/ecsa2016_confguide_15052016.pdf)) on the third day. While a number of projects had been proposed for this session beforehand, it was possible to suggest additional ones on the spot. I took that opportunity and brought up the topic of usability and interoperability of citizen science projects and platforms, which then led to an interesting discussion. The group was too small to take notes and discuss at the same time, but I am confident that the topic will surface again, and looking forward to engage with whoever shares that interest.