Add OSS 2021

Author: MarkusTiede

docs/md/activities/media.md

@@ -6,6 +6,8 @@
 
 ### articles
 
+#### `de` 06.2021 - ["Open Source Studie Schweiz 2021"](https://oss-studie.ch/assets/pdfs/OSS-Studie2021.pdf) Baloise Group - Organisationsportrait, [Markus Tiede et al.](https://github.com/baloise/open-source/pull/289) - [oss-studie.ch](https://oss-studie.ch)
+
 #### `de` 02.2021 - "Open-Source-Projekte Leuchttürme", _Matthias Stürmer_ - [computerworld.ch](https://www.digitale-nachhaltigkeit.unibe.ch/unibe/portal/fak_naturwis/a_dept_math/c_iinfamath/abt_digital/content/e273593/e484785/e1045980/Computerworld_2-21_GB_Open_CH_Open-Source-Projekte_ger.pdf)
 
 #### `de` 05.12.2020 - "Freigabe von Open Source Software in der Schweiz", _Matthias Stürmer_ - [Swiss IT Magazine](https://www.itmagazine.ch/artikel/seite/73575/0/.html)