Merge branch 'jandt-new-abstracts' into 'master'

CS3 abstract (without link so far)

See merge request hifis/hifis.net!149

mission/publications.md

@@ -15,7 +15,8 @@ excerpt:
 
 
 #### Abstracts, Presentations, News
-* HIFIS at [EGI conference](https://indico.egi.eu/event/5000/overview) (2-5 November 2020):
+* [HIFIS: Sync&Share Federation for Helmholtz](https://nubes.helmholtz-berlin.de/s/HWiR3ne6BkTWNgz). In: [CS3 2021 - Cloud Storage Synchronization and Sharing](https://indico.cern.ch/event/970232/program).
+* HIFIS presentations at [EGI conference](https://indico.egi.eu/event/5000/overview) (2-5 November 2020):
   - [Helmholtz Federated IT and Accessible Compute Resources for Applied AI Research](https://indico.egi.eu/event/5000/contributions/14353/)
   - [HIFIS transfer service: FTS for everyone](https://indico.egi.eu/event/5000/contributions/14383/)
 * [Presentations of all major HIFIS working groups](https://hifis-events.hzdr.de/event/25/timetable/#all.detailed) at the All-hands HIFIS Meeting 2020